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Finding the Fourth Proportional to 325,126.54, 487,640.52 and 88,487.66

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Solution

The fourth proportional to 325,126.54, 487,640.52 and 88,487.66 is: 132,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,126.54 : 487,640.52 = 88,487.66 : x
  2. Step 2: Convert to fraction form
    325,126.54/487,640.52 = 88,487.66/x
  3. Step 3: Cross multiply
    325,126.54x = 487,640.52 × 88,487.66
  4. Step 4: Simplify right side
    325,126.54x = 43,150,168,535.98
  5. Step 5: Solve for x
    x = 43,150,168,535.98/325,126.54
  6. Step 6: Final answer
    x = 132,718.08

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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.