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Finding the Fourth Proportional to 125,049.56, 172,582.26 and 71,347.84

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Solution

The fourth proportional to 125,049.56, 172,582.26 and 71,347.84 is: 98,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,049.56 : 172,582.26 = 71,347.84 : x
  2. Step 2: Convert to fraction form
    125,049.56/172,582.26 = 71,347.84/x
  3. Step 3: Cross multiply
    125,049.56x = 172,582.26 × 71,347.84
  4. Step 4: Simplify right side
    125,049.56x = 12,313,371,473.32
  5. Step 5: Solve for x
    x = 12,313,371,473.32/125,049.56
  6. Step 6: Final answer
    x = 98,467.93

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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.