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Finding the Fourth Proportional to 119,694.71, 179,480.87 and 39,703.80

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Solution

The fourth proportional to 119,694.71, 179,480.87 and 39,703.80 is: 59,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,694.71 : 179,480.87 = 39,703.80 : x
  2. Step 2: Convert to fraction form
    119,694.71/179,480.87 = 39,703.80/x
  3. Step 3: Cross multiply
    119,694.71x = 179,480.87 × 39,703.80
  4. Step 4: Simplify right side
    119,694.71x = 7,126,072,566.31
  5. Step 5: Solve for x
    x = 7,126,072,566.31/119,694.71
  6. Step 6: Final answer
    x = 59,535.40

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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.