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Finding the Fourth Proportional to 125,055.71, 172,576.97 and 67,694.85

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Solution

The fourth proportional to 125,055.71, 172,576.97 and 67,694.85 is: 93,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,055.71 : 172,576.97 = 67,694.85 : x
  2. Step 2: Convert to fraction form
    125,055.71/172,576.97 = 67,694.85/x
  3. Step 3: Cross multiply
    125,055.71x = 172,576.97 × 67,694.85
  4. Step 4: Simplify right side
    125,055.71x = 11,682,572,012.99
  5. Step 5: Solve for x
    x = 11,682,572,012.99/125,055.71
  6. Step 6: Final answer
    x = 93,418.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.