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Finding the Fourth Proportional to 90,187.52, 124,404.54 and 59,560.89

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Solution

The fourth proportional to 90,187.52, 124,404.54 and 59,560.89 is: 82,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,187.52 : 124,404.54 = 59,560.89 : x
  2. Step 2: Convert to fraction form
    90,187.52/124,404.54 = 59,560.89/x
  3. Step 3: Cross multiply
    90,187.52x = 124,404.54 × 59,560.89
  4. Step 4: Simplify right side
    90,187.52x = 7,409,645,122.44
  5. Step 5: Solve for x
    x = 7,409,645,122.44/90,187.52
  6. Step 6: Final answer
    x = 82,158.21

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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.