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Finding the Fourth Proportional to 169,646.81, 254,082.52 and 80,962.59

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Solution

The fourth proportional to 169,646.81, 254,082.52 and 80,962.59 is: 121,258.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,646.81 : 254,082.52 = 80,962.59 : x
  2. Step 2: Convert to fraction form
    169,646.81/254,082.52 = 80,962.59/x
  3. Step 3: Cross multiply
    169,646.81x = 254,082.52 × 80,962.59
  4. Step 4: Simplify right side
    169,646.81x = 20,571,178,690.52
  5. Step 5: Solve for x
    x = 20,571,178,690.52/169,646.81
  6. Step 6: Final answer
    x = 121,258.86

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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.