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Finding the Fourth Proportional to 88,132.60, 132,393.30 and 84,827.80

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Solution

The fourth proportional to 88,132.60, 132,393.30 and 84,827.80 is: 127,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,132.60 : 132,393.30 = 84,827.80 : x
  2. Step 2: Convert to fraction form
    88,132.60/132,393.30 = 84,827.80/x
  3. Step 3: Cross multiply
    88,132.60x = 132,393.30 × 84,827.80
  4. Step 4: Simplify right side
    88,132.60x = 11,230,632,373.74
  5. Step 5: Solve for x
    x = 11,230,632,373.74/88,132.60
  6. Step 6: Final answer
    x = 127,428.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.