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Finding the Fourth Proportional to 169,432.20, 254,148.30 and 166,807.80

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Solution

The fourth proportional to 169,432.20, 254,148.30 and 166,807.80 is: 250,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,432.20 : 254,148.30 = 166,807.80 : x
  2. Step 2: Convert to fraction form
    169,432.20/254,148.30 = 166,807.80/x
  3. Step 3: Cross multiply
    169,432.20x = 254,148.30 × 166,807.80
  4. Step 4: Simplify right side
    169,432.20x = 42,393,918,796.74
  5. Step 5: Solve for x
    x = 42,393,918,796.74/169,432.20
  6. Step 6: Final answer
    x = 250,211.70

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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.