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Finding the Fourth Proportional to 220,309.55, 304,028.18 and 124,834.85

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Solution

The fourth proportional to 220,309.55, 304,028.18 and 124,834.85 is: 172,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,309.55 : 304,028.18 = 124,834.85 : x
  2. Step 2: Convert to fraction form
    220,309.55/304,028.18 = 124,834.85/x
  3. Step 3: Cross multiply
    220,309.55x = 304,028.18 × 124,834.85
  4. Step 4: Simplify right side
    220,309.55x = 37,953,310,101.76
  5. Step 5: Solve for x
    x = 37,953,310,101.76/220,309.55
  6. Step 6: Final answer
    x = 172,272.65

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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.