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Finding the Fourth Proportional to 99,280.92, 137,007.63 and 54,568.92

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Solution

The fourth proportional to 99,280.92, 137,007.63 and 54,568.92 is: 75,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,280.92 : 137,007.63 = 54,568.92 : x
  2. Step 2: Convert to fraction form
    99,280.92/137,007.63 = 54,568.92/x
  3. Step 3: Cross multiply
    99,280.92x = 137,007.63 × 54,568.92
  4. Step 4: Simplify right side
    99,280.92x = 7,476,358,400.86
  5. Step 5: Solve for x
    x = 7,476,358,400.86/99,280.92
  6. Step 6: Final answer
    x = 75,305.09

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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.