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Finding the Fourth Proportional to 111,909.97, 167,815.70 and 59,307.13

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Solution

The fourth proportional to 111,909.97, 167,815.70 and 59,307.13 is: 88,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,909.97 : 167,815.70 = 59,307.13 : x
  2. Step 2: Convert to fraction form
    111,909.97/167,815.70 = 59,307.13/x
  3. Step 3: Cross multiply
    111,909.97x = 167,815.70 × 59,307.13
  4. Step 4: Simplify right side
    111,909.97x = 9,952,667,535.94
  5. Step 5: Solve for x
    x = 9,952,667,535.94/111,909.97
  6. Step 6: Final answer
    x = 88,934.59

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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.