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Finding the Fourth Proportional to 259,269.50, 357,792.15 and 140,037.50

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Solution

The fourth proportional to 259,269.50, 357,792.15 and 140,037.50 is: 193,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,269.50 : 357,792.15 = 140,037.50 : x
  2. Step 2: Convert to fraction form
    259,269.50/357,792.15 = 140,037.50/x
  3. Step 3: Cross multiply
    259,269.50x = 357,792.15 × 140,037.50
  4. Step 4: Simplify right side
    259,269.50x = 50,104,318,205.63
  5. Step 5: Solve for x
    x = 50,104,318,205.63/259,269.50
  6. Step 6: Final answer
    x = 193,251.88

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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.