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Finding the Fourth Proportional to 247,123.28, 370,710.84 and 80,924.24

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Solution

The fourth proportional to 247,123.28, 370,710.84 and 80,924.24 is: 121,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,123.28 : 370,710.84 = 80,924.24 : x
  2. Step 2: Convert to fraction form
    247,123.28/370,710.84 = 80,924.24/x
  3. Step 3: Cross multiply
    247,123.28x = 370,710.84 × 80,924.24
  4. Step 4: Simplify right side
    247,123.28x = 29,999,492,986.76
  5. Step 5: Solve for x
    x = 29,999,492,986.76/247,123.28
  6. Step 6: Final answer
    x = 121,394.85

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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.