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Finding the Fourth Proportional to 85,060.64, 127,599.96 and 35,144.48

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Solution

The fourth proportional to 85,060.64, 127,599.96 and 35,144.48 is: 52,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,060.64 : 127,599.96 = 35,144.48 : x
  2. Step 2: Convert to fraction form
    85,060.64/127,599.96 = 35,144.48/x
  3. Step 3: Cross multiply
    85,060.64x = 127,599.96 × 35,144.48
  4. Step 4: Simplify right side
    85,060.64x = 4,484,434,242.22
  5. Step 5: Solve for x
    x = 4,484,434,242.22/85,060.64
  6. Step 6: Final answer
    x = 52,720.44

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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.