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Finding the Fourth Proportional to 159,712.20, 239,568.30 and 119,795.40

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Solution

The fourth proportional to 159,712.20, 239,568.30 and 119,795.40 is: 179,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,712.20 : 239,568.30 = 119,795.40 : x
  2. Step 2: Convert to fraction form
    159,712.20/239,568.30 = 119,795.40/x
  3. Step 3: Cross multiply
    159,712.20x = 239,568.30 × 119,795.40
  4. Step 4: Simplify right side
    159,712.20x = 28,699,180,325.82
  5. Step 5: Solve for x
    x = 28,699,180,325.82/159,712.20
  6. Step 6: Final answer
    x = 179,693.10

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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.