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Finding the Fourth Proportional to 70,890.48, 97,843.08 and 40,696.26

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Solution

The fourth proportional to 70,890.48, 97,843.08 and 40,696.26 is: 56,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.48 : 97,843.08 = 40,696.26 : x
  2. Step 2: Convert to fraction form
    70,890.48/97,843.08 = 40,696.26/x
  3. Step 3: Cross multiply
    70,890.48x = 97,843.08 × 40,696.26
  4. Step 4: Simplify right side
    70,890.48x = 3,981,847,422.88
  5. Step 5: Solve for x
    x = 3,981,847,422.88/70,890.48
  6. Step 6: Final answer
    x = 56,169.00

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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.