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Finding the Fourth Proportional to 67,436,041.20, 101,154,061.80 and 50,429,929.20

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Solution

The fourth proportional to 67,436,041.20, 101,154,061.80 and 50,429,929.20 is: 75,644,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,436,041.20 : 101,154,061.80 = 50,429,929.20 : x
  2. Step 2: Convert to fraction form
    67,436,041.20/101,154,061.80 = 50,429,929.20/x
  3. Step 3: Cross multiply
    67,436,041.20x = 101,154,061.80 × 50,429,929.20
  4. Step 4: Simplify right side
    67,436,041.20x = 5,101,192,174,866,425
  5. Step 5: Solve for x
    x = 5,101,192,174,866,425/67,436,041.20
  6. Step 6: Final answer
    x = 75,644,893.80

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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.