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Finding the Fourth Proportional to 158,609.80, 237,947.10 and 53,439.40

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Solution

The fourth proportional to 158,609.80, 237,947.10 and 53,439.40 is: 80,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,609.80 : 237,947.10 = 53,439.40 : x
  2. Step 2: Convert to fraction form
    158,609.80/237,947.10 = 53,439.40/x
  3. Step 3: Cross multiply
    158,609.80x = 237,947.10 × 53,439.40
  4. Step 4: Simplify right side
    158,609.80x = 12,715,750,255.74
  5. Step 5: Solve for x
    x = 12,715,750,255.74/158,609.80
  6. Step 6: Final answer
    x = 80,170.02

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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.