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Finding the Fourth Proportional to 169,637.70, 254,456.55 and 98,487.30

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Solution

The fourth proportional to 169,637.70, 254,456.55 and 98,487.30 is: 147,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,637.70 : 254,456.55 = 98,487.30 : x
  2. Step 2: Convert to fraction form
    169,637.70/254,456.55 = 98,487.30/x
  3. Step 3: Cross multiply
    169,637.70x = 254,456.55 × 98,487.30
  4. Step 4: Simplify right side
    169,637.70x = 25,060,738,576.82
  5. Step 5: Solve for x
    x = 25,060,738,576.82/169,637.70
  6. Step 6: Final answer
    x = 147,730.95

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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.