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Finding the Fourth Proportional to 85,173.60, 127,785.06 and 35,244.48

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Solution

The fourth proportional to 85,173.60, 127,785.06 and 35,244.48 is: 52,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,173.60 : 127,785.06 = 35,244.48 : x
  2. Step 2: Convert to fraction form
    85,173.60/127,785.06 = 35,244.48/x
  3. Step 3: Cross multiply
    85,173.60x = 127,785.06 × 35,244.48
  4. Step 4: Simplify right side
    85,173.60x = 4,503,717,991.47
  5. Step 5: Solve for x
    x = 4,503,717,991.47/85,173.60
  6. Step 6: Final answer
    x = 52,876.92

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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.