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Finding the Fourth Proportional to 199,500.85, 275,311.19 and 127,881.01

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Solution

The fourth proportional to 199,500.85, 275,311.19 and 127,881.01 is: 176,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,500.85 : 275,311.19 = 127,881.01 : x
  2. Step 2: Convert to fraction form
    199,500.85/275,311.19 = 127,881.01/x
  3. Step 3: Cross multiply
    199,500.85x = 275,311.19 × 127,881.01
  4. Step 4: Simplify right side
    199,500.85x = 35,207,073,041.50
  5. Step 5: Solve for x
    x = 35,207,073,041.50/199,500.85
  6. Step 6: Final answer
    x = 176,475.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.