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Finding the Fourth Proportional to 265,617.53, 398,209.19 and 123,551.38

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Solution

The fourth proportional to 265,617.53, 398,209.19 and 123,551.38 is: 185,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,617.53 : 398,209.19 = 123,551.38 : x
  2. Step 2: Convert to fraction form
    265,617.53/398,209.19 = 123,551.38/x
  3. Step 3: Cross multiply
    265,617.53x = 398,209.19 × 123,551.38
  4. Step 4: Simplify right side
    265,617.53x = 49,199,292,344.38
  5. Step 5: Solve for x
    x = 49,199,292,344.38/265,617.53
  6. Step 6: Final answer
    x = 185,226.08

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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.