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Finding the Fourth Proportional to 324,409.60, 486,468.60 and 124,663.60

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Solution

The fourth proportional to 324,409.60, 486,468.60 and 124,663.60 is: 186,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,409.60 : 486,468.60 = 124,663.60 : x
  2. Step 2: Convert to fraction form
    324,409.60/486,468.60 = 124,663.60/x
  3. Step 3: Cross multiply
    324,409.60x = 486,468.60 × 124,663.60
  4. Step 4: Simplify right side
    324,409.60x = 60,644,926,962.96
  5. Step 5: Solve for x
    x = 60,644,926,962.96/324,409.60
  6. Step 6: Final answer
    x = 186,939.37

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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.