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Finding the Fourth Proportional to 169,915.01, 254,724.87 and 99,646.70

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Solution

The fourth proportional to 169,915.01, 254,724.87 and 99,646.70 is: 149,383.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,915.01 : 254,724.87 = 99,646.70 : x
  2. Step 2: Convert to fraction form
    169,915.01/254,724.87 = 99,646.70/x
  3. Step 3: Cross multiply
    169,915.01x = 254,724.87 × 99,646.70
  4. Step 4: Simplify right side
    169,915.01x = 25,382,491,429.80
  5. Step 5: Solve for x
    x = 25,382,491,429.80/169,915.01
  6. Step 6: Final answer
    x = 149,383.46

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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.