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Finding the Fourth Proportional to 324,459.68, 486,702.92 and 111,373.96

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Solution

The fourth proportional to 324,459.68, 486,702.92 and 111,373.96 is: 167,065.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,459.68 : 486,702.92 = 111,373.96 : x
  2. Step 2: Convert to fraction form
    324,459.68/486,702.92 = 111,373.96/x
  3. Step 3: Cross multiply
    324,459.68x = 486,702.92 × 111,373.96
  4. Step 4: Simplify right side
    324,459.68x = 54,206,031,543.96
  5. Step 5: Solve for x
    x = 54,206,031,543.96/324,459.68
  6. Step 6: Final answer
    x = 167,065.54

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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.