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Finding the Fourth Proportional to 71,305.88, 98,358.96 and 45,803.56

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Solution

The fourth proportional to 71,305.88, 98,358.96 and 45,803.56 is: 63,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,305.88 : 98,358.96 = 45,803.56 : x
  2. Step 2: Convert to fraction form
    71,305.88/98,358.96 = 45,803.56/x
  3. Step 3: Cross multiply
    71,305.88x = 98,358.96 × 45,803.56
  4. Step 4: Simplify right side
    71,305.88x = 4,505,190,525.90
  5. Step 5: Solve for x
    x = 4,505,190,525.90/71,305.88
  6. Step 6: Final answer
    x = 63,181.19

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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.