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Finding the Fourth Proportional to 148,787.87, 205,277.30 and 84,248.28

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Solution

The fourth proportional to 148,787.87, 205,277.30 and 84,248.28 is: 116,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,787.87 : 205,277.30 = 84,248.28 : x
  2. Step 2: Convert to fraction form
    148,787.87/205,277.30 = 84,248.28/x
  3. Step 3: Cross multiply
    148,787.87x = 205,277.30 × 84,248.28
  4. Step 4: Simplify right side
    148,787.87x = 17,294,259,026.80
  5. Step 5: Solve for x
    x = 17,294,259,026.80/148,787.87
  6. Step 6: Final answer
    x = 116,234.34

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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.