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Finding the Fourth Proportional to 124,512.68, 171,770.88 and 73,490.72

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Solution

The fourth proportional to 124,512.68, 171,770.88 and 73,490.72 is: 101,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,512.68 : 171,770.88 = 73,490.72 : x
  2. Step 2: Convert to fraction form
    124,512.68/171,770.88 = 73,490.72/x
  3. Step 3: Cross multiply
    124,512.68x = 171,770.88 × 73,490.72
  4. Step 4: Simplify right side
    124,512.68x = 12,623,565,646.23
  5. Step 5: Solve for x
    x = 12,623,565,646.23/124,512.68
  6. Step 6: Final answer
    x = 101,383.78

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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.