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Finding the Fourth Proportional to 148,281.92, 203,965.44 and 130,042.88

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Solution

The fourth proportional to 148,281.92, 203,965.44 and 130,042.88 is: 178,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,281.92 : 203,965.44 = 130,042.88 : x
  2. Step 2: Convert to fraction form
    148,281.92/203,965.44 = 130,042.88/x
  3. Step 3: Cross multiply
    148,281.92x = 203,965.44 × 130,042.88
  4. Step 4: Simplify right side
    148,281.92x = 26,524,253,238.07
  5. Step 5: Solve for x
    x = 26,524,253,238.07/148,281.92
  6. Step 6: Final answer
    x = 178,877.19

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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.