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Finding the Fourth Proportional to 99,253.22, 136,923.98 and 75,010.32

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Solution

The fourth proportional to 99,253.22, 136,923.98 and 75,010.32 is: 103,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,253.22 : 136,923.98 = 75,010.32 : x
  2. Step 2: Convert to fraction form
    99,253.22/136,923.98 = 75,010.32/x
  3. Step 3: Cross multiply
    99,253.22x = 136,923.98 × 75,010.32
  4. Step 4: Simplify right side
    99,253.22x = 10,270,711,180.42
  5. Step 5: Solve for x
    x = 10,270,711,180.42/99,253.22
  6. Step 6: Final answer
    x = 103,479.88

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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.