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Finding the Fourth Proportional to 325,127.53, 487,642.02 and 88,488.65

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Solution

The fourth proportional to 325,127.53, 487,642.02 and 88,488.65 is: 132,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,127.53 : 487,642.02 = 88,488.65 : x
  2. Step 2: Convert to fraction form
    325,127.53/487,642.02 = 88,488.65/x
  3. Step 3: Cross multiply
    325,127.53x = 487,642.02 × 88,488.65
  4. Step 4: Simplify right side
    325,127.53x = 43,150,784,033.07
  5. Step 5: Solve for x
    x = 43,150,784,033.07/325,127.53
  6. Step 6: Final answer
    x = 132,719.56

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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.