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Finding the Fourth Proportional to 148,047.45, 204,310.80 and 84,374.97

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Solution

The fourth proportional to 148,047.45, 204,310.80 and 84,374.97 is: 116,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,047.45 : 204,310.80 = 84,374.97 : x
  2. Step 2: Convert to fraction form
    148,047.45/204,310.80 = 84,374.97/x
  3. Step 3: Cross multiply
    148,047.45x = 204,310.80 × 84,374.97
  4. Step 4: Simplify right side
    148,047.45x = 17,238,717,620.68
  5. Step 5: Solve for x
    x = 17,238,717,620.68/148,047.45
  6. Step 6: Final answer
    x = 116,440.49

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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.