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Finding the Fourth Proportional to 361,574.06, 542,366.56 and 136,874.16

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Solution

The fourth proportional to 361,574.06, 542,366.56 and 136,874.16 is: 205,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,574.06 : 542,366.56 = 136,874.16 : x
  2. Step 2: Convert to fraction form
    361,574.06/542,366.56 = 136,874.16/x
  3. Step 3: Cross multiply
    361,574.06x = 542,366.56 × 136,874.16
  4. Step 4: Simplify right side
    361,574.06x = 74,235,969,517.06
  5. Step 5: Solve for x
    x = 74,235,969,517.06/361,574.06
  6. Step 6: Final answer
    x = 205,313.32

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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.