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Finding the Fourth Proportional to 67,292.93, 100,759.87 and 53,281.55

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Solution

The fourth proportional to 67,292.93, 100,759.87 and 53,281.55 is: 79,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,292.93 : 100,759.87 = 53,281.55 : x
  2. Step 2: Convert to fraction form
    67,292.93/100,759.87 = 53,281.55/x
  3. Step 3: Cross multiply
    67,292.93x = 100,759.87 × 53,281.55
  4. Step 4: Simplify right side
    67,292.93x = 5,368,641,952.98
  5. Step 5: Solve for x
    x = 5,368,641,952.98/67,292.93
  6. Step 6: Final answer
    x = 79,780.18

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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.