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Finding the Fourth Proportional to 60,378.97, 90,543.17 and 22,918.39

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Solution

The fourth proportional to 60,378.97, 90,543.17 and 22,918.39 is: 34,367.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,378.97 : 90,543.17 = 22,918.39 : x
  2. Step 2: Convert to fraction form
    60,378.97/90,543.17 = 22,918.39/x
  3. Step 3: Cross multiply
    60,378.97x = 90,543.17 × 22,918.39
  4. Step 4: Simplify right side
    60,378.97x = 2,075,103,893.22
  5. Step 5: Solve for x
    x = 2,075,103,893.22/60,378.97
  6. Step 6: Final answer
    x = 34,367.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.