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Finding the Fourth Proportional to 89,385.44, 124,207.28 and 88,413.44

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Solution

The fourth proportional to 89,385.44, 124,207.28 and 88,413.44 is: 122,856.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,385.44 : 124,207.28 = 88,413.44 : x
  2. Step 2: Convert to fraction form
    89,385.44/124,207.28 = 88,413.44/x
  3. Step 3: Cross multiply
    89,385.44x = 124,207.28 × 88,413.44
  4. Step 4: Simplify right side
    89,385.44x = 10,981,592,897.84
  5. Step 5: Solve for x
    x = 10,981,592,897.84/89,385.44
  6. Step 6: Final answer
    x = 122,856.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.