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Finding the Fourth Proportional to 111,253.35, 153,380.95 and 92,062.43

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Solution

The fourth proportional to 111,253.35, 153,380.95 and 92,062.43 is: 126,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,253.35 : 153,380.95 = 92,062.43 : x
  2. Step 2: Convert to fraction form
    111,253.35/153,380.95 = 92,062.43/x
  3. Step 3: Cross multiply
    111,253.35x = 153,380.95 × 92,062.43
  4. Step 4: Simplify right side
    111,253.35x = 14,120,622,972.71
  5. Step 5: Solve for x
    x = 14,120,622,972.71/111,253.35
  6. Step 6: Final answer
    x = 126,923.13

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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.