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Finding the Fourth Proportional to 167,369.20, 251,053.80 and 42,710.20

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Solution

The fourth proportional to 167,369.20, 251,053.80 and 42,710.20 is: 64,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,369.20 : 251,053.80 = 42,710.20 : x
  2. Step 2: Convert to fraction form
    167,369.20/251,053.80 = 42,710.20/x
  3. Step 3: Cross multiply
    167,369.20x = 251,053.80 × 42,710.20
  4. Step 4: Simplify right side
    167,369.20x = 10,722,558,008.76
  5. Step 5: Solve for x
    x = 10,722,558,008.76/167,369.20
  6. Step 6: Final answer
    x = 64,065.30

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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.