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Finding the Fourth Proportional to 114,917.80, 172,376.70 and 36,031.90

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Solution

The fourth proportional to 114,917.80, 172,376.70 and 36,031.90 is: 54,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,917.80 : 172,376.70 = 36,031.90 : x
  2. Step 2: Convert to fraction form
    114,917.80/172,376.70 = 36,031.90/x
  3. Step 3: Cross multiply
    114,917.80x = 172,376.70 × 36,031.90
  4. Step 4: Simplify right side
    114,917.80x = 6,211,060,016.73
  5. Step 5: Solve for x
    x = 6,211,060,016.73/114,917.80
  6. Step 6: Final answer
    x = 54,047.85

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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.