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Finding the Fourth Proportional to 85,170.66, 117,472.56 and 62,502

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Solution

The fourth proportional to 85,170.66, 117,472.56 and 62,502 is: 86,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,170.66 : 117,472.56 = 62,502 : x
  2. Step 2: Convert to fraction form
    85,170.66/117,472.56 = 62,502/x
  3. Step 3: Cross multiply
    85,170.66x = 117,472.56 × 62,502
  4. Step 4: Simplify right side
    85,170.66x = 7,342,269,945.12
  5. Step 5: Solve for x
    x = 7,342,269,945.12/85,170.66
  6. Step 6: Final answer
    x = 86,206.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.