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Finding the Fourth Proportional to 147,282.26, 220,717.44 and 79,668.32

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Solution

The fourth proportional to 147,282.26, 220,717.44 and 79,668.32 is: 119,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,282.26 : 220,717.44 = 79,668.32 : x
  2. Step 2: Convert to fraction form
    147,282.26/220,717.44 = 79,668.32/x
  3. Step 3: Cross multiply
    147,282.26x = 220,717.44 × 79,668.32
  4. Step 4: Simplify right side
    147,282.26x = 17,584,187,639.50
  5. Step 5: Solve for x
    x = 17,584,187,639.50/147,282.26
  6. Step 6: Final answer
    x = 119,391.08

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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.