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Finding the Fourth Proportional to 324,678.18, 487,017.25 and 88,014.71

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Solution

The fourth proportional to 324,678.18, 487,017.25 and 88,014.71 is: 132,022.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,678.18 : 487,017.25 = 88,014.71 : x
  2. Step 2: Convert to fraction form
    324,678.18/487,017.25 = 88,014.71/x
  3. Step 3: Cross multiply
    324,678.18x = 487,017.25 × 88,014.71
  4. Step 4: Simplify right side
    324,678.18x = 42,864,682,023.75
  5. Step 5: Solve for x
    x = 42,864,682,023.75/324,678.18
  6. Step 6: Final answer
    x = 132,022.06

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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.