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Finding the Fourth Proportional to 140,863.57, 210,944.84 and 98,545.56

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Solution

The fourth proportional to 140,863.57, 210,944.84 and 98,545.56 is: 147,573.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,863.57 : 210,944.84 = 98,545.56 : x
  2. Step 2: Convert to fraction form
    140,863.57/210,944.84 = 98,545.56/x
  3. Step 3: Cross multiply
    140,863.57x = 210,944.84 × 98,545.56
  4. Step 4: Simplify right side
    140,863.57x = 20,787,677,844.02
  5. Step 5: Solve for x
    x = 20,787,677,844.02/140,863.57
  6. Step 6: Final answer
    x = 147,573.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.