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Finding the Fourth Proportional to 325,291.88, 487,962.47 and 100,675.04

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Solution

The fourth proportional to 325,291.88, 487,962.47 and 100,675.04 is: 151,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,291.88 : 487,962.47 = 100,675.04 : x
  2. Step 2: Convert to fraction form
    325,291.88/487,962.47 = 100,675.04/x
  3. Step 3: Cross multiply
    325,291.88x = 487,962.47 × 100,675.04
  4. Step 4: Simplify right side
    325,291.88x = 49,125,638,997.62
  5. Step 5: Solve for x
    x = 49,125,638,997.62/325,291.88
  6. Step 6: Final answer
    x = 151,020.18

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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.