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Finding the Fourth Proportional to 169,708.80, 254,563.20 and 148,972.80

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Solution

The fourth proportional to 169,708.80, 254,563.20 and 148,972.80 is: 223,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,708.80 : 254,563.20 = 148,972.80 : x
  2. Step 2: Convert to fraction form
    169,708.80/254,563.20 = 148,972.80/x
  3. Step 3: Cross multiply
    169,708.80x = 254,563.20 × 148,972.80
  4. Step 4: Simplify right side
    169,708.80x = 37,922,992,680.96
  5. Step 5: Solve for x
    x = 37,922,992,680.96/169,708.80
  6. Step 6: Final answer
    x = 223,459.20

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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.