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Finding the Fourth Proportional to 98,469.64, 135,883.38 and 56,024.20

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Solution

The fourth proportional to 98,469.64, 135,883.38 and 56,024.20 is: 77,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,469.64 : 135,883.38 = 56,024.20 : x
  2. Step 2: Convert to fraction form
    98,469.64/135,883.38 = 56,024.20/x
  3. Step 3: Cross multiply
    98,469.64x = 135,883.38 × 56,024.20
  4. Step 4: Simplify right side
    98,469.64x = 7,612,757,657.80
  5. Step 5: Solve for x
    x = 7,612,757,657.80/98,469.64
  6. Step 6: Final answer
    x = 77,310.71

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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.