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Finding the Fourth Proportional to 148,427.88, 204,840.36 and 83,874.72

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Solution

The fourth proportional to 148,427.88, 204,840.36 and 83,874.72 is: 115,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,427.88 : 204,840.36 = 83,874.72 : x
  2. Step 2: Convert to fraction form
    148,427.88/204,840.36 = 83,874.72/x
  3. Step 3: Cross multiply
    148,427.88x = 204,840.36 × 83,874.72
  4. Step 4: Simplify right side
    148,427.88x = 17,180,927,839.70
  5. Step 5: Solve for x
    x = 17,180,927,839.70/148,427.88
  6. Step 6: Final answer
    x = 115,752.70

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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.