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Finding the Fourth Proportional to 159,437.80, 239,156.70 and 152,180.20

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Solution

The fourth proportional to 159,437.80, 239,156.70 and 152,180.20 is: 228,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,437.80 : 239,156.70 = 152,180.20 : x
  2. Step 2: Convert to fraction form
    159,437.80/239,156.70 = 152,180.20/x
  3. Step 3: Cross multiply
    159,437.80x = 239,156.70 × 152,180.20
  4. Step 4: Simplify right side
    159,437.80x = 36,394,914,437.34
  5. Step 5: Solve for x
    x = 36,394,914,437.34/159,437.80
  6. Step 6: Final answer
    x = 228,270.30

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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.