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Finding the Fourth Proportional to 242,759.52, 335,018.40 and 135,329.44

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Solution

The fourth proportional to 242,759.52, 335,018.40 and 135,329.44 is: 186,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,759.52 : 335,018.40 = 135,329.44 : x
  2. Step 2: Convert to fraction form
    242,759.52/335,018.40 = 135,329.44/x
  3. Step 3: Cross multiply
    242,759.52x = 335,018.40 × 135,329.44
  4. Step 4: Simplify right side
    242,759.52x = 45,337,852,461.70
  5. Step 5: Solve for x
    x = 45,337,852,461.70/242,759.52
  6. Step 6: Final answer
    x = 186,760.35

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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.