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Finding the Fourth Proportional to 129,183, 193,775.31 and 35,689.56

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Solution

The fourth proportional to 129,183, 193,775.31 and 35,689.56 is: 53,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,183 : 193,775.31 = 35,689.56 : x
  2. Step 2: Convert to fraction form
    129,183/193,775.31 = 35,689.56/x
  3. Step 3: Cross multiply
    129,183x = 193,775.31 × 35,689.56
  4. Step 4: Simplify right side
    129,183x = 6,915,755,552.76
  5. Step 5: Solve for x
    x = 6,915,755,552.76/129,183
  6. Step 6: Final answer
    x = 53,534.56

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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.