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Finding the Fourth Proportional to 93,711.87, 129,243.87 and 59,721.84

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Solution

The fourth proportional to 93,711.87, 129,243.87 and 59,721.84 is: 82,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,711.87 : 129,243.87 = 59,721.84 : x
  2. Step 2: Convert to fraction form
    93,711.87/129,243.87 = 59,721.84/x
  3. Step 3: Cross multiply
    93,711.87x = 129,243.87 × 59,721.84
  4. Step 4: Simplify right side
    93,711.87x = 7,718,681,725.12
  5. Step 5: Solve for x
    x = 7,718,681,725.12/93,711.87
  6. Step 6: Final answer
    x = 82,366.11

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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.