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Finding the Fourth Proportional to 124,859.44, 172,291.92 and 73,873.72

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Solution

The fourth proportional to 124,859.44, 172,291.92 and 73,873.72 is: 101,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,859.44 : 172,291.92 = 73,873.72 : x
  2. Step 2: Convert to fraction form
    124,859.44/172,291.92 = 73,873.72/x
  3. Step 3: Cross multiply
    124,859.44x = 172,291.92 × 73,873.72
  4. Step 4: Simplify right side
    124,859.44x = 12,727,845,056.34
  5. Step 5: Solve for x
    x = 12,727,845,056.34/124,859.44
  6. Step 6: Final answer
    x = 101,937.39

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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.