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Finding the Fourth Proportional to 124,807.66, 172,207.44 and 73,823.20

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Solution

The fourth proportional to 124,807.66, 172,207.44 and 73,823.20 is: 101,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,807.66 : 172,207.44 = 73,823.20 : x
  2. Step 2: Convert to fraction form
    124,807.66/172,207.44 = 73,823.20/x
  3. Step 3: Cross multiply
    124,807.66x = 172,207.44 × 73,823.20
  4. Step 4: Simplify right side
    124,807.66x = 12,712,904,284.61
  5. Step 5: Solve for x
    x = 12,712,904,284.61/124,807.66
  6. Step 6: Final answer
    x = 101,859.97

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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.