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Finding the Fourth Proportional to 100,651,449.60, 150,753,225.60 and 82,735,545.60

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Solution

The fourth proportional to 100,651,449.60, 150,753,225.60 and 82,735,545.60 is: 123,919,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,651,449.60 : 150,753,225.60 = 82,735,545.60 : x
  2. Step 2: Convert to fraction form
    100,651,449.60/150,753,225.60 = 82,735,545.60/x
  3. Step 3: Cross multiply
    100,651,449.60x = 150,753,225.60 × 82,735,545.60
  4. Step 4: Simplify right side
    100,651,449.60x = 12,472,650,370,975,886
  5. Step 5: Solve for x
    x = 12,472,650,370,975,886/100,651,449.60
  6. Step 6: Final answer
    x = 123,919,232.37

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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.