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Finding the Fourth Proportional to 220,908.88, 304,839.73 and 130,260.46

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Solution

The fourth proportional to 220,908.88, 304,839.73 and 130,260.46 is: 179,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,908.88 : 304,839.73 = 130,260.46 : x
  2. Step 2: Convert to fraction form
    220,908.88/304,839.73 = 130,260.46/x
  3. Step 3: Cross multiply
    220,908.88x = 304,839.73 × 130,260.46
  4. Step 4: Simplify right side
    220,908.88x = 39,708,563,456.08
  5. Step 5: Solve for x
    x = 39,708,563,456.08/220,908.88
  6. Step 6: Final answer
    x = 179,750.87

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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.