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Finding the Fourth Proportional to 220,220.84, 303,925.97 and 123,424.22

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Solution

The fourth proportional to 220,220.84, 303,925.97 and 123,424.22 is: 170,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,220.84 : 303,925.97 = 123,424.22 : x
  2. Step 2: Convert to fraction form
    220,220.84/303,925.97 = 123,424.22/x
  3. Step 3: Cross multiply
    220,220.84x = 303,925.97 × 123,424.22
  4. Step 4: Simplify right side
    220,220.84x = 37,511,823,648.24
  5. Step 5: Solve for x
    x = 37,511,823,648.24/220,220.84
  6. Step 6: Final answer
    x = 170,337.31

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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.