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Finding the Fourth Proportional to 157,489.70, 236,234.55 and 154,865.30

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Solution

The fourth proportional to 157,489.70, 236,234.55 and 154,865.30 is: 232,297.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,489.70 : 236,234.55 = 154,865.30 : x
  2. Step 2: Convert to fraction form
    157,489.70/236,234.55 = 154,865.30/x
  3. Step 3: Cross multiply
    157,489.70x = 236,234.55 × 154,865.30
  4. Step 4: Simplify right side
    157,489.70x = 36,584,534,456.12
  5. Step 5: Solve for x
    x = 36,584,534,456.12/157,489.70
  6. Step 6: Final answer
    x = 232,297.95

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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.