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Finding the Fourth Proportional to 169,822.80, 254,928.60 and 99,741.60

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Solution

The fourth proportional to 169,822.80, 254,928.60 and 99,741.60 is: 149,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,822.80 : 254,928.60 = 99,741.60 : x
  2. Step 2: Convert to fraction form
    169,822.80/254,928.60 = 99,741.60/x
  3. Step 3: Cross multiply
    169,822.80x = 254,928.60 × 99,741.60
  4. Step 4: Simplify right side
    169,822.80x = 25,426,986,449.76
  5. Step 5: Solve for x
    x = 25,426,986,449.76/169,822.80
  6. Step 6: Final answer
    x = 149,726.58

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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.