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Finding the Fourth Proportional to 71,294.87, 98,282.14 and 54,269.46

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Solution

The fourth proportional to 71,294.87, 98,282.14 and 54,269.46 is: 74,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,294.87 : 98,282.14 = 54,269.46 : x
  2. Step 2: Convert to fraction form
    71,294.87/98,282.14 = 54,269.46/x
  3. Step 3: Cross multiply
    71,294.87x = 98,282.14 × 54,269.46
  4. Step 4: Simplify right side
    71,294.87x = 5,333,718,529.77
  5. Step 5: Solve for x
    x = 5,333,718,529.77/71,294.87
  6. Step 6: Final answer
    x = 74,812.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.