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Finding the Fourth Proportional to 89,924.40, 135,032.40 and 60,472.80

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Solution

The fourth proportional to 89,924.40, 135,032.40 and 60,472.80 is: 90,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,924.40 : 135,032.40 = 60,472.80 : x
  2. Step 2: Convert to fraction form
    89,924.40/135,032.40 = 60,472.80/x
  3. Step 3: Cross multiply
    89,924.40x = 135,032.40 × 60,472.80
  4. Step 4: Simplify right side
    89,924.40x = 8,165,787,318.72
  5. Step 5: Solve for x
    x = 8,165,787,318.72/89,924.40
  6. Step 6: Final answer
    x = 90,807.25

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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.