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Finding the Fourth Proportional to 93,963.84, 140,882.88 and 49,543.68

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Solution

The fourth proportional to 93,963.84, 140,882.88 and 49,543.68 is: 74,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,963.84 : 140,882.88 = 49,543.68 : x
  2. Step 2: Convert to fraction form
    93,963.84/140,882.88 = 49,543.68/x
  3. Step 3: Cross multiply
    93,963.84x = 140,882.88 × 49,543.68
  4. Step 4: Simplify right side
    93,963.84x = 6,979,856,324.20
  5. Step 5: Solve for x
    x = 6,979,856,324.20/93,963.84
  6. Step 6: Final answer
    x = 74,282.37

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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.