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Finding the Fourth Proportional to 169,474.80, 254,212.20 and 98,518.80

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Solution

The fourth proportional to 169,474.80, 254,212.20 and 98,518.80 is: 147,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,474.80 : 254,212.20 = 98,518.80 : x
  2. Step 2: Convert to fraction form
    169,474.80/254,212.20 = 98,518.80/x
  3. Step 3: Cross multiply
    169,474.80x = 254,212.20 × 98,518.80
  4. Step 4: Simplify right side
    169,474.80x = 25,044,680,889.36
  5. Step 5: Solve for x
    x = 25,044,680,889.36/169,474.80
  6. Step 6: Final answer
    x = 147,778.20

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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.