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Finding the Fourth Proportional to 124,467.62, 171,778.62 and 76,097.92

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Solution

The fourth proportional to 124,467.62, 171,778.62 and 76,097.92 is: 105,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,467.62 : 171,778.62 = 76,097.92 : x
  2. Step 2: Convert to fraction form
    124,467.62/171,778.62 = 76,097.92/x
  3. Step 3: Cross multiply
    124,467.62x = 171,778.62 × 76,097.92
  4. Step 4: Simplify right side
    124,467.62x = 13,071,995,682.47
  5. Step 5: Solve for x
    x = 13,071,995,682.47/124,467.62
  6. Step 6: Final answer
    x = 105,023.26

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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.