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Finding the Fourth Proportional to 124,163.52, 171,345.72 and 67,575.28

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Solution

The fourth proportional to 124,163.52, 171,345.72 and 67,575.28 is: 93,253.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,163.52 : 171,345.72 = 67,575.28 : x
  2. Step 2: Convert to fraction form
    124,163.52/171,345.72 = 67,575.28/x
  3. Step 3: Cross multiply
    124,163.52x = 171,345.72 × 67,575.28
  4. Step 4: Simplify right side
    124,163.52x = 11,578,735,005.80
  5. Step 5: Solve for x
    x = 11,578,735,005.80/124,163.52
  6. Step 6: Final answer
    x = 93,253.92

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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.