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Finding the Fourth Proportional to 220,195.74, 303,859.92 and 124,703.10

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Solution

The fourth proportional to 220,195.74, 303,859.92 and 124,703.10 is: 172,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,195.74 : 303,859.92 = 124,703.10 : x
  2. Step 2: Convert to fraction form
    220,195.74/303,859.92 = 124,703.10/x
  3. Step 3: Cross multiply
    220,195.74x = 303,859.92 × 124,703.10
  4. Step 4: Simplify right side
    220,195.74x = 37,892,273,989.75
  5. Step 5: Solve for x
    x = 37,892,273,989.75/220,195.74
  6. Step 6: Final answer
    x = 172,084.50

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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.