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Finding the Fourth Proportional to 220,263.12, 303,890.82 and 123,452.82

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Solution

The fourth proportional to 220,263.12, 303,890.82 and 123,452.82 is: 170,324.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,263.12 : 303,890.82 = 123,452.82 : x
  2. Step 2: Convert to fraction form
    220,263.12/303,890.82 = 123,452.82/x
  3. Step 3: Cross multiply
    220,263.12x = 303,890.82 × 123,452.82
  4. Step 4: Simplify right side
    220,263.12x = 37,516,178,701.11
  5. Step 5: Solve for x
    x = 37,516,178,701.11/220,263.12
  6. Step 6: Final answer
    x = 170,324.38

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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.