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Finding the Fourth Proportional to 220,712.73, 304,562.49 and 123,894.39

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Solution

The fourth proportional to 220,712.73, 304,562.49 and 123,894.39 is: 170,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,712.73 : 304,562.49 = 123,894.39 : x
  2. Step 2: Convert to fraction form
    220,712.73/304,562.49 = 123,894.39/x
  3. Step 3: Cross multiply
    220,712.73x = 304,562.49 × 123,894.39
  4. Step 4: Simplify right side
    220,712.73x = 37,733,583,915.43
  5. Step 5: Solve for x
    x = 37,733,583,915.43/220,712.73
  6. Step 6: Final answer
    x = 170,962.43

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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.