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Finding the Fourth Proportional to 40,788,297.90, 61,182,446.85 and 13,861,953.90

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Solution

The fourth proportional to 40,788,297.90, 61,182,446.85 and 13,861,953.90 is: 20,792,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,788,297.90 : 61,182,446.85 = 13,861,953.90 : x
  2. Step 2: Convert to fraction form
    40,788,297.90/61,182,446.85 = 13,861,953.90/x
  3. Step 3: Cross multiply
    40,788,297.90x = 61,182,446.85 × 13,861,953.90
  4. Step 4: Simplify right side
    40,788,297.90x = 848,108,257,723,900.25
  5. Step 5: Solve for x
    x = 848,108,257,723,900.25/40,788,297.90
  6. Step 6: Final answer
    x = 20,792,930.85

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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.