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Finding the Fourth Proportional to 169,988.02, 254,772.81 and 75,115.96

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Solution

The fourth proportional to 169,988.02, 254,772.81 and 75,115.96 is: 112,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,988.02 : 254,772.81 = 75,115.96 : x
  2. Step 2: Convert to fraction form
    169,988.02/254,772.81 = 75,115.96/x
  3. Step 3: Cross multiply
    169,988.02x = 254,772.81 × 75,115.96
  4. Step 4: Simplify right side
    169,988.02x = 19,137,503,568.12
  5. Step 5: Solve for x
    x = 19,137,503,568.12/169,988.02
  6. Step 6: Final answer
    x = 112,581.49

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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.