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Finding the Fourth Proportional to 93,640, 140,473.98 and 34,471.12

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Solution

The fourth proportional to 93,640, 140,473.98 and 34,471.12 is: 51,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,640 : 140,473.98 = 34,471.12 : x
  2. Step 2: Convert to fraction form
    93,640/140,473.98 = 34,471.12/x
  3. Step 3: Cross multiply
    93,640x = 140,473.98 × 34,471.12
  4. Step 4: Simplify right side
    93,640x = 4,842,295,421.46
  5. Step 5: Solve for x
    x = 4,842,295,421.46/93,640
  6. Step 6: Final answer
    x = 51,711.83

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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.