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Finding the Fourth Proportional to 69,102, 95,360.76 and 40,808.16

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Solution

The fourth proportional to 69,102, 95,360.76 and 40,808.16 is: 56,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,102 : 95,360.76 = 40,808.16 : x
  2. Step 2: Convert to fraction form
    69,102/95,360.76 = 40,808.16/x
  3. Step 3: Cross multiply
    69,102x = 95,360.76 × 40,808.16
  4. Step 4: Simplify right side
    69,102x = 3,891,497,151.80
  5. Step 5: Solve for x
    x = 3,891,497,151.80/69,102
  6. Step 6: Final answer
    x = 56,315.26

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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.