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Finding the Fourth Proportional to 265,517.70, 398,276.55 and 123,362.70

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Solution

The fourth proportional to 265,517.70, 398,276.55 and 123,362.70 is: 185,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,517.70 : 398,276.55 = 123,362.70 : x
  2. Step 2: Convert to fraction form
    265,517.70/398,276.55 = 123,362.70/x
  3. Step 3: Cross multiply
    265,517.70x = 398,276.55 × 123,362.70
  4. Step 4: Simplify right side
    265,517.70x = 49,132,470,554.69
  5. Step 5: Solve for x
    x = 49,132,470,554.69/265,517.70
  6. Step 6: Final answer
    x = 185,044.05

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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.