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Finding the Fourth Proportional to 250,820.48, 376,229.70 and 90,859.02

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Solution

The fourth proportional to 250,820.48, 376,229.70 and 90,859.02 is: 136,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,820.48 : 376,229.70 = 90,859.02 : x
  2. Step 2: Convert to fraction form
    250,820.48/376,229.70 = 90,859.02/x
  3. Step 3: Cross multiply
    250,820.48x = 376,229.70 × 90,859.02
  4. Step 4: Simplify right side
    250,820.48x = 34,183,861,836.89
  5. Step 5: Solve for x
    x = 34,183,861,836.89/250,820.48
  6. Step 6: Final answer
    x = 136,288.16

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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.