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Finding the Fourth Proportional to 170,950.44, 256,221.85 and 79,643.36

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Solution

The fourth proportional to 170,950.44, 256,221.85 and 79,643.36 is: 119,370.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,950.44 : 256,221.85 = 79,643.36 : x
  2. Step 2: Convert to fraction form
    170,950.44/256,221.85 = 79,643.36/x
  3. Step 3: Cross multiply
    170,950.44x = 256,221.85 × 79,643.36
  4. Step 4: Simplify right side
    170,950.44x = 20,406,368,641.20
  5. Step 5: Solve for x
    x = 20,406,368,641.20/170,950.44
  6. Step 6: Final answer
    x = 119,370.09

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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.