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Finding the Fourth Proportional to 124,299.92, 171,533.48 and 67,711.12

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Solution

The fourth proportional to 124,299.92, 171,533.48 and 67,711.12 is: 93,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,299.92 : 171,533.48 = 67,711.12 : x
  2. Step 2: Convert to fraction form
    124,299.92/171,533.48 = 67,711.12/x
  3. Step 3: Cross multiply
    124,299.92x = 171,533.48 × 67,711.12
  4. Step 4: Simplify right side
    124,299.92x = 11,614,724,048.30
  5. Step 5: Solve for x
    x = 11,614,724,048.30/124,299.92
  6. Step 6: Final answer
    x = 93,441.12

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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.