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Finding the Fourth Proportional to 112,381.92, 155,073.84 and 62,077.92

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Solution

The fourth proportional to 112,381.92, 155,073.84 and 62,077.92 is: 85,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,381.92 : 155,073.84 = 62,077.92 : x
  2. Step 2: Convert to fraction form
    112,381.92/155,073.84 = 62,077.92/x
  3. Step 3: Cross multiply
    112,381.92x = 155,073.84 × 62,077.92
  4. Step 4: Simplify right side
    112,381.92x = 9,626,661,433.61
  5. Step 5: Solve for x
    x = 9,626,661,433.61/112,381.92
  6. Step 6: Final answer
    x = 85,660.23

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1.5x scale

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.