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Finding the Fourth Proportional to 151,242.80, 226,864.20 and 115,813.40

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Solution

The fourth proportional to 151,242.80, 226,864.20 and 115,813.40 is: 173,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,242.80 : 226,864.20 = 115,813.40 : x
  2. Step 2: Convert to fraction form
    151,242.80/226,864.20 = 115,813.40/x
  3. Step 3: Cross multiply
    151,242.80x = 226,864.20 × 115,813.40
  4. Step 4: Simplify right side
    151,242.80x = 26,273,914,340.28
  5. Step 5: Solve for x
    x = 26,273,914,340.28/151,242.80
  6. Step 6: Final answer
    x = 173,720.10

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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.