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Finding the Fourth Proportional to 158,632.40, 237,481.10 and 138,949.40

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Solution

The fourth proportional to 158,632.40, 237,481.10 and 138,949.40 is: 208,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,632.40 : 237,481.10 = 138,949.40 : x
  2. Step 2: Convert to fraction form
    158,632.40/237,481.10 = 138,949.40/x
  3. Step 3: Cross multiply
    158,632.40x = 237,481.10 × 138,949.40
  4. Step 4: Simplify right side
    158,632.40x = 32,997,856,356.34
  5. Step 5: Solve for x
    x = 32,997,856,356.34/158,632.40
  6. Step 6: Final answer
    x = 208,014.61

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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.