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Finding the Fourth Proportional to 324,543.42, 486,856.08 and 111,253.50

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Solution

The fourth proportional to 324,543.42, 486,856.08 and 111,253.50 is: 166,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,543.42 : 486,856.08 = 111,253.50 : x
  2. Step 2: Convert to fraction form
    324,543.42/486,856.08 = 111,253.50/x
  3. Step 3: Cross multiply
    324,543.42x = 486,856.08 × 111,253.50
  4. Step 4: Simplify right side
    324,543.42x = 54,164,442,896.28
  5. Step 5: Solve for x
    x = 54,164,442,896.28/324,543.42
  6. Step 6: Final answer
    x = 166,894.29

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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.