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Finding the Fourth Proportional to 100,687.59, 150,937.07 and 34,081.11

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Solution

The fourth proportional to 100,687.59, 150,937.07 and 34,081.11 is: 51,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,687.59 : 150,937.07 = 34,081.11 : x
  2. Step 2: Convert to fraction form
    100,687.59/150,937.07 = 34,081.11/x
  3. Step 3: Cross multiply
    100,687.59x = 150,937.07 × 34,081.11
  4. Step 4: Simplify right side
    100,687.59x = 5,144,102,715.34
  5. Step 5: Solve for x
    x = 5,144,102,715.34/100,687.59
  6. Step 6: Final answer
    x = 51,089.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.