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Finding the Fourth Proportional to 88,331.70, 132,497.55 and 68,624.40

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Solution

The fourth proportional to 88,331.70, 132,497.55 and 68,624.40 is: 102,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,331.70 : 132,497.55 = 68,624.40 : x
  2. Step 2: Convert to fraction form
    88,331.70/132,497.55 = 68,624.40/x
  3. Step 3: Cross multiply
    88,331.70x = 132,497.55 × 68,624.40
  4. Step 4: Simplify right side
    88,331.70x = 9,092,564,870.22
  5. Step 5: Solve for x
    x = 9,092,564,870.22/88,331.70
  6. Step 6: Final answer
    x = 102,936.60

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1.5x scale

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.