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Finding the Fourth Proportional to 168,078.60, 252,020.70 and 62,908.20

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Solution

The fourth proportional to 168,078.60, 252,020.70 and 62,908.20 is: 94,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,078.60 : 252,020.70 = 62,908.20 : x
  2. Step 2: Convert to fraction form
    168,078.60/252,020.70 = 62,908.20/x
  3. Step 3: Cross multiply
    168,078.60x = 252,020.70 × 62,908.20
  4. Step 4: Simplify right side
    168,078.60x = 15,854,168,599.74
  5. Step 5: Solve for x
    x = 15,854,168,599.74/168,078.60
  6. Step 6: Final answer
    x = 94,325.92

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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.