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Finding the Fourth Proportional to 114,959.64, 172,439.22 and 36,079.98

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Solution

The fourth proportional to 114,959.64, 172,439.22 and 36,079.98 is: 54,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,959.64 : 172,439.22 = 36,079.98 : x
  2. Step 2: Convert to fraction form
    114,959.64/172,439.22 = 36,079.98/x
  3. Step 3: Cross multiply
    114,959.64x = 172,439.22 × 36,079.98
  4. Step 4: Simplify right side
    114,959.64x = 6,221,603,608.82
  5. Step 5: Solve for x
    x = 6,221,603,608.82/114,959.64
  6. Step 6: Final answer
    x = 54,119.89

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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.