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Finding the Fourth Proportional to 376,376.79, 564,202.31 and 126,922.71

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Solution

The fourth proportional to 376,376.79, 564,202.31 and 126,922.71 is: 190,261.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,376.79 : 564,202.31 = 126,922.71 : x
  2. Step 2: Convert to fraction form
    376,376.79/564,202.31 = 126,922.71/x
  3. Step 3: Cross multiply
    376,376.79x = 564,202.31 × 126,922.71
  4. Step 4: Simplify right side
    376,376.79x = 71,610,085,538.85
  5. Step 5: Solve for x
    x = 71,610,085,538.85/376,376.79
  6. Step 6: Final answer
    x = 190,261.69

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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.