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Finding the Fourth Proportional to 111,427.78, 167,170.48 and 65,252.45

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Solution

The fourth proportional to 111,427.78, 167,170.48 and 65,252.45 is: 97,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,427.78 : 167,170.48 = 65,252.45 : x
  2. Step 2: Convert to fraction form
    111,427.78/167,170.48 = 65,252.45/x
  3. Step 3: Cross multiply
    111,427.78x = 167,170.48 × 65,252.45
  4. Step 4: Simplify right side
    111,427.78x = 10,908,283,387.68
  5. Step 5: Solve for x
    x = 10,908,283,387.68/111,427.78
  6. Step 6: Final answer
    x = 97,895.55

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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.