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Finding the Fourth Proportional to 117,710.67, 162,442.49 and 63,995.56

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Solution

The fourth proportional to 117,710.67, 162,442.49 and 63,995.56 is: 88,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,710.67 : 162,442.49 = 63,995.56 : x
  2. Step 2: Convert to fraction form
    117,710.67/162,442.49 = 63,995.56/x
  3. Step 3: Cross multiply
    117,710.67x = 162,442.49 × 63,995.56
  4. Step 4: Simplify right side
    117,710.67x = 10,395,598,115.34
  5. Step 5: Solve for x
    x = 10,395,598,115.34/117,710.67
  6. Step 6: Final answer
    x = 88,314.83

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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.