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Finding the Fourth Proportional to 60,556, 83,578.84 and 40,102.04

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Solution

The fourth proportional to 60,556, 83,578.84 and 40,102.04 is: 55,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,556 : 83,578.84 = 40,102.04 : x
  2. Step 2: Convert to fraction form
    60,556/83,578.84 = 40,102.04/x
  3. Step 3: Cross multiply
    60,556x = 83,578.84 × 40,102.04
  4. Step 4: Simplify right side
    60,556x = 3,351,681,984.83
  5. Step 5: Solve for x
    x = 3,351,681,984.83/60,556
  6. Step 6: Final answer
    x = 55,348.47

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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.