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Finding the Fourth Proportional to 265,618.48, 366,542.80 and 144,757.20

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Solution

The fourth proportional to 265,618.48, 366,542.80 and 144,757.20 is: 199,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,618.48 : 366,542.80 = 144,757.20 : x
  2. Step 2: Convert to fraction form
    265,618.48/366,542.80 = 144,757.20/x
  3. Step 3: Cross multiply
    265,618.48x = 366,542.80 × 144,757.20
  4. Step 4: Simplify right side
    265,618.48x = 53,059,709,408.16
  5. Step 5: Solve for x
    x = 53,059,709,408.16/265,618.48
  6. Step 6: Final answer
    x = 199,759.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.