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Finding the Fourth Proportional to 88,745.40, 133,098.90 and 38,825.40

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Solution

The fourth proportional to 88,745.40, 133,098.90 and 38,825.40 is: 58,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,745.40 : 133,098.90 = 38,825.40 : x
  2. Step 2: Convert to fraction form
    88,745.40/133,098.90 = 38,825.40/x
  3. Step 3: Cross multiply
    88,745.40x = 133,098.90 × 38,825.40
  4. Step 4: Simplify right side
    88,745.40x = 5,167,618,032.06
  5. Step 5: Solve for x
    x = 5,167,618,032.06/88,745.40
  6. Step 6: Final answer
    x = 58,229.70

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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.