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Finding the Fourth Proportional to 99,264.38, 136,984.86 and 54,552.38

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Solution

The fourth proportional to 99,264.38, 136,984.86 and 54,552.38 is: 75,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,264.38 : 136,984.86 = 54,552.38 : x
  2. Step 2: Convert to fraction form
    99,264.38/136,984.86 = 54,552.38/x
  3. Step 3: Cross multiply
    99,264.38x = 136,984.86 × 54,552.38
  4. Step 4: Simplify right side
    99,264.38x = 7,472,849,452.04
  5. Step 5: Solve for x
    x = 7,472,849,452.04/99,264.38
  6. Step 6: Final answer
    x = 75,282.29

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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.