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Finding the Fourth Proportional to 132,597.89, 182,985.09 and 72,168.97

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Solution

The fourth proportional to 132,597.89, 182,985.09 and 72,168.97 is: 99,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,597.89 : 182,985.09 = 72,168.97 : x
  2. Step 2: Convert to fraction form
    132,597.89/182,985.09 = 72,168.97/x
  3. Step 3: Cross multiply
    132,597.89x = 182,985.09 × 72,168.97
  4. Step 4: Simplify right side
    132,597.89x = 13,205,845,470.66
  5. Step 5: Solve for x
    x = 13,205,845,470.66/132,597.89
  6. Step 6: Final answer
    x = 99,593.18

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1.5x scale

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.