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Finding the Fourth Proportional to 324,174.60, 486,116.10 and 124,428.60

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Solution

The fourth proportional to 324,174.60, 486,116.10 and 124,428.60 is: 186,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,174.60 : 486,116.10 = 124,428.60 : x
  2. Step 2: Convert to fraction form
    324,174.60/486,116.10 = 124,428.60/x
  3. Step 3: Cross multiply
    324,174.60x = 486,116.10 × 124,428.60
  4. Step 4: Simplify right side
    324,174.60x = 60,486,745,760.46
  5. Step 5: Solve for x
    x = 60,486,745,760.46/324,174.60
  6. Step 6: Final answer
    x = 186,586.94

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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.