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Finding the Fourth Proportional to 88,125.91, 121,852.96 and 86,701.52

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Solution

The fourth proportional to 88,125.91, 121,852.96 and 86,701.52 is: 119,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,125.91 : 121,852.96 = 86,701.52 : x
  2. Step 2: Convert to fraction form
    88,125.91/121,852.96 = 86,701.52/x
  3. Step 3: Cross multiply
    88,125.91x = 121,852.96 × 86,701.52
  4. Step 4: Simplify right side
    88,125.91x = 10,564,836,936.38
  5. Step 5: Solve for x
    x = 10,564,836,936.38/88,125.91
  6. Step 6: Final answer
    x = 119,883.44

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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.