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Finding the Fourth Proportional to 324,564.32, 486,887.52 and 111,373.76

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Solution

The fourth proportional to 324,564.32, 486,887.52 and 111,373.76 is: 167,074.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,564.32 : 486,887.52 = 111,373.76 : x
  2. Step 2: Convert to fraction form
    324,564.32/486,887.52 = 111,373.76/x
  3. Step 3: Cross multiply
    324,564.32x = 486,887.52 × 111,373.76
  4. Step 4: Simplify right side
    324,564.32x = 54,226,493,799.48
  5. Step 5: Solve for x
    x = 54,226,493,799.48/324,564.32
  6. Step 6: Final answer
    x = 167,074.72

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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.