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Finding the Fourth Proportional to 169,859.28, 234,405.90 and 94,407.72

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Solution

The fourth proportional to 169,859.28, 234,405.90 and 94,407.72 is: 130,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,859.28 : 234,405.90 = 94,407.72 : x
  2. Step 2: Convert to fraction form
    169,859.28/234,405.90 = 94,407.72/x
  3. Step 3: Cross multiply
    169,859.28x = 234,405.90 × 94,407.72
  4. Step 4: Simplify right side
    169,859.28x = 22,129,726,573.55
  5. Step 5: Solve for x
    x = 22,129,726,573.55/169,859.28
  6. Step 6: Final answer
    x = 130,282.71

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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.