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Finding the Fourth Proportional to 92,882.86, 128,217.57 and 62,709.04

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Solution

The fourth proportional to 92,882.86, 128,217.57 and 62,709.04 is: 86,564.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,882.86 : 128,217.57 = 62,709.04 : x
  2. Step 2: Convert to fraction form
    92,882.86/128,217.57 = 62,709.04/x
  3. Step 3: Cross multiply
    92,882.86x = 128,217.57 × 62,709.04
  4. Step 4: Simplify right side
    92,882.86x = 8,040,400,725.83
  5. Step 5: Solve for x
    x = 8,040,400,725.83/92,882.86
  6. Step 6: Final answer
    x = 86,564.96

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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.