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Finding the Fourth Proportional to 117,195.01, 161,729.17 and 63,479.86

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Solution

The fourth proportional to 117,195.01, 161,729.17 and 63,479.86 is: 87,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,195.01 : 161,729.17 = 63,479.86 : x
  2. Step 2: Convert to fraction form
    117,195.01/161,729.17 = 63,479.86/x
  3. Step 3: Cross multiply
    117,195.01x = 161,729.17 × 63,479.86
  4. Step 4: Simplify right side
    117,195.01x = 10,266,544,506.49
  5. Step 5: Solve for x
    x = 10,266,544,506.49/117,195.01
  6. Step 6: Final answer
    x = 87,602.23

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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.