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Finding the Fourth Proportional to 169,691.40, 254,472.30 and 51,323.40

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Solution

The fourth proportional to 169,691.40, 254,472.30 and 51,323.40 is: 76,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,691.40 : 254,472.30 = 51,323.40 : x
  2. Step 2: Convert to fraction form
    169,691.40/254,472.30 = 51,323.40/x
  3. Step 3: Cross multiply
    169,691.40x = 254,472.30 × 51,323.40
  4. Step 4: Simplify right side
    169,691.40x = 13,060,383,641.82
  5. Step 5: Solve for x
    x = 13,060,383,641.82/169,691.40
  6. Step 6: Final answer
    x = 76,965.50

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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.