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Finding the Fourth Proportional to 325,126.53, 487,640.52 and 88,487.65

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Solution

The fourth proportional to 325,126.53, 487,640.52 and 88,487.65 is: 132,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,126.53 : 487,640.52 = 88,487.65 : x
  2. Step 2: Convert to fraction form
    325,126.53/487,640.52 = 88,487.65/x
  3. Step 3: Cross multiply
    325,126.53x = 487,640.52 × 88,487.65
  4. Step 4: Simplify right side
    325,126.53x = 43,150,163,659.58
  5. Step 5: Solve for x
    x = 43,150,163,659.58/325,126.53
  6. Step 6: Final answer
    x = 132,718.06

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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.