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Finding the Fourth Proportional to 20,865,044,230.60, 31,297,566,345.90 and 20,865,044,230.60

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Solution

The fourth proportional to 20,865,044,230.60, 31,297,566,345.90 and 20,865,044,230.60 is: 31,297,566,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865,044,230.60 : 31,297,566,345.90 = 20,865,044,230.60 : x
  2. Step 2: Convert to fraction form
    20,865,044,230.60/31,297,566,345.90 = 20,865,044,230.60/x
  3. Step 3: Cross multiply
    20,865,044,230.60x = 31,297,566,345.90 × 20,865,044,230.60
  4. Step 4: Simplify right side
    20,865,044,230.60x = 653,025,106,117,341,478,912
  5. Step 5: Solve for x
    x = 653,025,106,117,341,478,912/20,865,044,230.60
  6. Step 6: Final answer
    x = 31,297,566,345.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.