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Finding the Fourth Proportional to 157,481.70, 236,222.55 and 155,148.90

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Solution

The fourth proportional to 157,481.70, 236,222.55 and 155,148.90 is: 232,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,481.70 : 236,222.55 = 155,148.90 : x
  2. Step 2: Convert to fraction form
    157,481.70/236,222.55 = 155,148.90/x
  3. Step 3: Cross multiply
    157,481.70x = 236,222.55 × 155,148.90
  4. Step 4: Simplify right side
    157,481.70x = 36,649,668,787.70
  5. Step 5: Solve for x
    x = 36,649,668,787.70/157,481.70
  6. Step 6: Final answer
    x = 232,723.35

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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.