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Finding the Fourth Proportional to 99,176.70, 136,863.69 and 54,464.70

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Solution

The fourth proportional to 99,176.70, 136,863.69 and 54,464.70 is: 75,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,176.70 : 136,863.69 = 54,464.70 : x
  2. Step 2: Convert to fraction form
    99,176.70/136,863.69 = 54,464.70/x
  3. Step 3: Cross multiply
    99,176.70x = 136,863.69 × 54,464.70
  4. Step 4: Simplify right side
    99,176.70x = 7,454,239,816.74
  5. Step 5: Solve for x
    x = 7,454,239,816.74/99,176.70
  6. Step 6: Final answer
    x = 75,161.20

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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.