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Finding the Fourth Proportional to 292,787.22, 404,043 and 158,651.22

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Solution

The fourth proportional to 292,787.22, 404,043 and 158,651.22 is: 218,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,787.22 : 404,043 = 158,651.22 : x
  2. Step 2: Convert to fraction form
    292,787.22/404,043 = 158,651.22/x
  3. Step 3: Cross multiply
    292,787.22x = 404,043 × 158,651.22
  4. Step 4: Simplify right side
    292,787.22x = 64,101,914,882.46
  5. Step 5: Solve for x
    x = 64,101,914,882.46/292,787.22
  6. Step 6: Final answer
    x = 218,936.86

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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.