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Finding the Fourth Proportional to 178,015.76, 245,640.02 and 141,809.42

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Solution

The fourth proportional to 178,015.76, 245,640.02 and 141,809.42 is: 195,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,015.76 : 245,640.02 = 141,809.42 : x
  2. Step 2: Convert to fraction form
    178,015.76/245,640.02 = 141,809.42/x
  3. Step 3: Cross multiply
    178,015.76x = 245,640.02 × 141,809.42
  4. Step 4: Simplify right side
    178,015.76x = 34,834,067,891.31
  5. Step 5: Solve for x
    x = 34,834,067,891.31/178,015.76
  6. Step 6: Final answer
    x = 195,679.68

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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.