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Finding the Fourth Proportional to 167,871.80, 251,807.70 and 96,915.80

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Solution

The fourth proportional to 167,871.80, 251,807.70 and 96,915.80 is: 145,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,871.80 : 251,807.70 = 96,915.80 : x
  2. Step 2: Convert to fraction form
    167,871.80/251,807.70 = 96,915.80/x
  3. Step 3: Cross multiply
    167,871.80x = 251,807.70 × 96,915.80
  4. Step 4: Simplify right side
    167,871.80x = 24,404,144,691.66
  5. Step 5: Solve for x
    x = 24,404,144,691.66/167,871.80
  6. Step 6: Final answer
    x = 145,373.70

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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.