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Finding the Fourth Proportional to 58,715.52, 88,081.12 and 17,161.92

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Solution

The fourth proportional to 58,715.52, 88,081.12 and 17,161.92 is: 25,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,715.52 : 88,081.12 = 17,161.92 : x
  2. Step 2: Convert to fraction form
    58,715.52/88,081.12 = 17,161.92/x
  3. Step 3: Cross multiply
    58,715.52x = 88,081.12 × 17,161.92
  4. Step 4: Simplify right side
    58,715.52x = 1,511,641,134.95
  5. Step 5: Solve for x
    x = 1,511,641,134.95/58,715.52
  6. Step 6: Final answer
    x = 25,745.17

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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.