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Finding the Fourth Proportional to 169,868.80, 254,803.20 and 113,881.60

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Solution

The fourth proportional to 169,868.80, 254,803.20 and 113,881.60 is: 170,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,868.80 : 254,803.20 = 113,881.60 : x
  2. Step 2: Convert to fraction form
    169,868.80/254,803.20 = 113,881.60/x
  3. Step 3: Cross multiply
    169,868.80x = 254,803.20 × 113,881.60
  4. Step 4: Simplify right side
    169,868.80x = 29,017,396,101.12
  5. Step 5: Solve for x
    x = 29,017,396,101.12/169,868.80
  6. Step 6: Final answer
    x = 170,822.40

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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.