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Finding the Fourth Proportional to 115,293.30, 172,956.15 and 36,399.30

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Solution

The fourth proportional to 115,293.30, 172,956.15 and 36,399.30 is: 54,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,293.30 : 172,956.15 = 36,399.30 : x
  2. Step 2: Convert to fraction form
    115,293.30/172,956.15 = 36,399.30/x
  3. Step 3: Cross multiply
    115,293.30x = 172,956.15 × 36,399.30
  4. Step 4: Simplify right side
    115,293.30x = 6,295,482,790.70
  5. Step 5: Solve for x
    x = 6,295,482,790.70/115,293.30
  6. Step 6: Final answer
    x = 54,604.06

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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.