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Finding the Fourth Proportional to 371,702.25, 557,551.55 and 105,463.25

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Solution

The fourth proportional to 371,702.25, 557,551.55 and 105,463.25 is: 158,194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,702.25 : 557,551.55 = 105,463.25 : x
  2. Step 2: Convert to fraction form
    371,702.25/557,551.55 = 105,463.25/x
  3. Step 3: Cross multiply
    371,702.25x = 557,551.55 × 105,463.25
  4. Step 4: Simplify right side
    371,702.25x = 58,801,198,072.26
  5. Step 5: Solve for x
    x = 58,801,198,072.26/371,702.25
  6. Step 6: Final answer
    x = 158,194.36

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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.