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Finding the Fourth Proportional to 324,679.56, 487,017.72 and 88,021.86

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Solution

The fourth proportional to 324,679.56, 487,017.72 and 88,021.86 is: 132,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,679.56 : 487,017.72 = 88,021.86 : x
  2. Step 2: Convert to fraction form
    324,679.56/487,017.72 = 88,021.86/x
  3. Step 3: Cross multiply
    324,679.56x = 487,017.72 × 88,021.86
  4. Step 4: Simplify right side
    324,679.56x = 42,868,205,567.36
  5. Step 5: Solve for x
    x = 42,868,205,567.36/324,679.56
  6. Step 6: Final answer
    x = 132,032.35

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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.