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Finding the Fourth Proportional to 167,245.80, 250,868.70 and 78,672.30

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Solution

The fourth proportional to 167,245.80, 250,868.70 and 78,672.30 is: 118,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,245.80 : 250,868.70 = 78,672.30 : x
  2. Step 2: Convert to fraction form
    167,245.80/250,868.70 = 78,672.30/x
  3. Step 3: Cross multiply
    167,245.80x = 250,868.70 × 78,672.30
  4. Step 4: Simplify right side
    167,245.80x = 19,736,417,627.01
  5. Step 5: Solve for x
    x = 19,736,417,627.01/167,245.80
  6. Step 6: Final answer
    x = 118,008.45

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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.