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Finding the Fourth Proportional to 70,454,731.60, 105,514,135.80 and 70,454,731.60

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Solution

The fourth proportional to 70,454,731.60, 105,514,135.80 and 70,454,731.60 is: 105,514,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,454,731.60 : 105,514,135.80 = 70,454,731.60 : x
  2. Step 2: Convert to fraction form
    70,454,731.60/105,514,135.80 = 70,454,731.60/x
  3. Step 3: Cross multiply
    70,454,731.60x = 105,514,135.80 × 70,454,731.60
  4. Step 4: Simplify right side
    70,454,731.60x = 7,433,970,117,794,950
  5. Step 5: Solve for x
    x = 7,433,970,117,794,950/70,454,731.60
  6. Step 6: Final answer
    x = 105,514,135.80

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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.