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Finding the Fourth Proportional to 84,475.98, 126,626.49 and 69,527.88

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Solution

The fourth proportional to 84,475.98, 126,626.49 and 69,527.88 is: 104,219.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,475.98 : 126,626.49 = 69,527.88 : x
  2. Step 2: Convert to fraction form
    84,475.98/126,626.49 = 69,527.88/x
  3. Step 3: Cross multiply
    84,475.98x = 126,626.49 × 69,527.88
  4. Step 4: Simplify right side
    84,475.98x = 8,804,071,401.54
  5. Step 5: Solve for x
    x = 8,804,071,401.54/84,475.98
  6. Step 6: Final answer
    x = 104,219.82

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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.