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Finding the Fourth Proportional to 169,319.46, 253,480.76 and 125,143.14

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Solution

The fourth proportional to 169,319.46, 253,480.76 and 125,143.14 is: 187,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,319.46 : 253,480.76 = 125,143.14 : x
  2. Step 2: Convert to fraction form
    169,319.46/253,480.76 = 125,143.14/x
  3. Step 3: Cross multiply
    169,319.46x = 253,480.76 × 125,143.14
  4. Step 4: Simplify right side
    169,319.46x = 31,721,378,235.99
  5. Step 5: Solve for x
    x = 31,721,378,235.99/169,319.46
  6. Step 6: Final answer
    x = 187,346.32

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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.