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Finding the Fourth Proportional to 67,159.56, 100,607.29 and 39,020.55

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Solution

The fourth proportional to 67,159.56, 100,607.29 and 39,020.55 is: 58,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,159.56 : 100,607.29 = 39,020.55 : x
  2. Step 2: Convert to fraction form
    67,159.56/100,607.29 = 39,020.55/x
  3. Step 3: Cross multiply
    67,159.56x = 100,607.29 × 39,020.55
  4. Step 4: Simplify right side
    67,159.56x = 3,925,751,789.81
  5. Step 5: Solve for x
    x = 3,925,751,789.81/67,159.56
  6. Step 6: Final answer
    x = 58,454.10

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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.