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Finding the Fourth Proportional to 159,543.20, 239,314.80 and 155,606.60

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Solution

The fourth proportional to 159,543.20, 239,314.80 and 155,606.60 is: 233,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,543.20 : 239,314.80 = 155,606.60 : x
  2. Step 2: Convert to fraction form
    159,543.20/239,314.80 = 155,606.60/x
  3. Step 3: Cross multiply
    159,543.20x = 239,314.80 × 155,606.60
  4. Step 4: Simplify right side
    159,543.20x = 37,238,962,357.68
  5. Step 5: Solve for x
    x = 37,238,962,357.68/159,543.20
  6. Step 6: Final answer
    x = 233,409.90

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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.