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Finding the Fourth Proportional to 77,393.26, 106,821.75 and 47,195.25

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Solution

The fourth proportional to 77,393.26, 106,821.75 and 47,195.25 is: 65,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,393.26 : 106,821.75 = 47,195.25 : x
  2. Step 2: Convert to fraction form
    77,393.26/106,821.75 = 47,195.25/x
  3. Step 3: Cross multiply
    77,393.26x = 106,821.75 × 47,195.25
  4. Step 4: Simplify right side
    77,393.26x = 5,041,479,196.69
  5. Step 5: Solve for x
    x = 5,041,479,196.69/77,393.26
  6. Step 6: Final answer
    x = 65,141.06

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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.