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Finding the Fourth Proportional to 119,581,251.20, 179,371,876.80 and 38,802,219.20

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Solution

The fourth proportional to 119,581,251.20, 179,371,876.80 and 38,802,219.20 is: 58,203,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,581,251.20 : 179,371,876.80 = 38,802,219.20 : x
  2. Step 2: Convert to fraction form
    119,581,251.20/179,371,876.80 = 38,802,219.20/x
  3. Step 3: Cross multiply
    119,581,251.20x = 179,371,876.80 × 38,802,219.20
  4. Step 4: Simplify right side
    119,581,251.20x = 6,960,026,881,908,996
  5. Step 5: Solve for x
    x = 6,960,026,881,908,996/119,581,251.20
  6. Step 6: Final answer
    x = 58,203,328.80

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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.