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Finding the Fourth Proportional to 70,198.67, 96,938.84 and 45,091.91

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Solution

The fourth proportional to 70,198.67, 96,938.84 and 45,091.91 is: 62,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,198.67 : 96,938.84 = 45,091.91 : x
  2. Step 2: Convert to fraction form
    70,198.67/96,938.84 = 45,091.91/x
  3. Step 3: Cross multiply
    70,198.67x = 96,938.84 × 45,091.91
  4. Step 4: Simplify right side
    70,198.67x = 4,371,157,223.32
  5. Step 5: Solve for x
    x = 4,371,157,223.32/70,198.67
  6. Step 6: Final answer
    x = 62,268.38

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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.