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Finding the Fourth Proportional to 125,694.94, 188,502.34 and 41,439.40

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Solution

The fourth proportional to 125,694.94, 188,502.34 and 41,439.40 is: 62,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,694.94 : 188,502.34 = 41,439.40 : x
  2. Step 2: Convert to fraction form
    125,694.94/188,502.34 = 41,439.40/x
  3. Step 3: Cross multiply
    125,694.94x = 188,502.34 × 41,439.40
  4. Step 4: Simplify right side
    125,694.94x = 7,811,423,868.20
  5. Step 5: Solve for x
    x = 7,811,423,868.20/125,694.94
  6. Step 6: Final answer
    x = 62,145.89

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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.