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Finding the Fourth Proportional to 81,253.92, 112,128.26 and 44,956.64

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Solution

The fourth proportional to 81,253.92, 112,128.26 and 44,956.64 is: 62,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253.92 : 112,128.26 = 44,956.64 : x
  2. Step 2: Convert to fraction form
    81,253.92/112,128.26 = 44,956.64/x
  3. Step 3: Cross multiply
    81,253.92x = 112,128.26 × 44,956.64
  4. Step 4: Simplify right side
    81,253.92x = 5,040,909,818.65
  5. Step 5: Solve for x
    x = 5,040,909,818.65/81,253.92
  6. Step 6: Final answer
    x = 62,038.97

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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.