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Finding the Fourth Proportional to 67,345.60, 101,237.10 and 47,759.80

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Solution

The fourth proportional to 67,345.60, 101,237.10 and 47,759.80 is: 71,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,345.60 : 101,237.10 = 47,759.80 : x
  2. Step 2: Convert to fraction form
    67,345.60/101,237.10 = 47,759.80/x
  3. Step 3: Cross multiply
    67,345.60x = 101,237.10 × 47,759.80
  4. Step 4: Simplify right side
    67,345.60x = 4,835,063,648.58
  5. Step 5: Solve for x
    x = 4,835,063,648.58/67,345.60
  6. Step 6: Final answer
    x = 71,794.80

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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.