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Finding the Fourth Proportional to 112,753.92, 169,132.93 and 40,703.92

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Solution

The fourth proportional to 112,753.92, 169,132.93 and 40,703.92 is: 61,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,753.92 : 169,132.93 = 40,703.92 : x
  2. Step 2: Convert to fraction form
    112,753.92/169,132.93 = 40,703.92/x
  3. Step 3: Cross multiply
    112,753.92x = 169,132.93 × 40,703.92
  4. Step 4: Simplify right side
    112,753.92x = 6,884,372,727.49
  5. Step 5: Solve for x
    x = 6,884,372,727.49/112,753.92
  6. Step 6: Final answer
    x = 61,056.61

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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.