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Finding the Fourth Proportional to 479,797.78, 719,693.42 and 159,974.14

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Solution

The fourth proportional to 479,797.78, 719,693.42 and 159,974.14 is: 239,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,797.78 : 719,693.42 = 159,974.14 : x
  2. Step 2: Convert to fraction form
    479,797.78/719,693.42 = 159,974.14/x
  3. Step 3: Cross multiply
    479,797.78x = 719,693.42 × 159,974.14
  4. Step 4: Simplify right side
    479,797.78x = 115,132,335,928.16
  5. Step 5: Solve for x
    x = 115,132,335,928.16/479,797.78
  6. Step 6: Final answer
    x = 239,960.13

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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.