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Finding the Fourth Proportional to 89,624.55, 123,720.17 and 63,799.77

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Solution

The fourth proportional to 89,624.55, 123,720.17 and 63,799.77 is: 88,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,624.55 : 123,720.17 = 63,799.77 : x
  2. Step 2: Convert to fraction form
    89,624.55/123,720.17 = 63,799.77/x
  3. Step 3: Cross multiply
    89,624.55x = 123,720.17 × 63,799.77
  4. Step 4: Simplify right side
    89,624.55x = 7,893,318,071.36
  5. Step 5: Solve for x
    x = 7,893,318,071.36/89,624.55
  6. Step 6: Final answer
    x = 88,070.94

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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.