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Finding the Fourth Proportional to 371,703.25, 557,553.05 and 105,464.25

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Solution

The fourth proportional to 371,703.25, 557,553.05 and 105,464.25 is: 158,195.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,703.25 : 557,553.05 = 105,464.25 : x
  2. Step 2: Convert to fraction form
    371,703.25/557,553.05 = 105,464.25/x
  3. Step 3: Cross multiply
    371,703.25x = 557,553.05 × 105,464.25
  4. Step 4: Simplify right side
    371,703.25x = 58,801,914,253.46
  5. Step 5: Solve for x
    x = 58,801,914,253.46/371,703.25
  6. Step 6: Final answer
    x = 158,195.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.