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Finding the Fourth Proportional to 220,834.69, 304,761.21 and 125,350.27

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Solution

The fourth proportional to 220,834.69, 304,761.21 and 125,350.27 is: 172,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,834.69 : 304,761.21 = 125,350.27 : x
  2. Step 2: Convert to fraction form
    220,834.69/304,761.21 = 125,350.27/x
  3. Step 3: Cross multiply
    220,834.69x = 304,761.21 × 125,350.27
  4. Step 4: Simplify right side
    220,834.69x = 38,201,899,959.03
  5. Step 5: Solve for x
    x = 38,201,899,959.03/220,834.69
  6. Step 6: Final answer
    x = 172,988.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.