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Finding the Fourth Proportional to 115,169.64, 172,760.64 and 36,290.04

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Solution

The fourth proportional to 115,169.64, 172,760.64 and 36,290.04 is: 54,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,169.64 : 172,760.64 = 36,290.04 : x
  2. Step 2: Convert to fraction form
    115,169.64/172,760.64 = 36,290.04/x
  3. Step 3: Cross multiply
    115,169.64x = 172,760.64 × 36,290.04
  4. Step 4: Simplify right side
    115,169.64x = 6,269,490,536.03
  5. Step 5: Solve for x
    x = 6,269,490,536.03/115,169.64
  6. Step 6: Final answer
    x = 54,437.01

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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.