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Finding the Fourth Proportional to 70,297,686.60, 105,508,737.90 and 41,507,824.20

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Solution

The fourth proportional to 70,297,686.60, 105,508,737.90 and 41,507,824.20 is: 62,298,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,297,686.60 : 105,508,737.90 = 41,507,824.20 : x
  2. Step 2: Convert to fraction form
    70,297,686.60/105,508,737.90 = 41,507,824.20/x
  3. Step 3: Cross multiply
    70,297,686.60x = 105,508,737.90 × 41,507,824.20
  4. Step 4: Simplify right side
    70,297,686.60x = 4,379,438,144,317,077.50
  5. Step 5: Solve for x
    x = 4,379,438,144,317,077.50/70,297,686.60
  6. Step 6: Final answer
    x = 62,298,467.50

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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.