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Finding the Fourth Proportional to 66,938.80, 100,377.05 and 24,817.18

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Solution

The fourth proportional to 66,938.80, 100,377.05 and 24,817.18 is: 37,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.80 : 100,377.05 = 24,817.18 : x
  2. Step 2: Convert to fraction form
    66,938.80/100,377.05 = 24,817.18/x
  3. Step 3: Cross multiply
    66,938.80x = 100,377.05 × 24,817.18
  4. Step 4: Simplify right side
    66,938.80x = 2,491,075,193.63
  5. Step 5: Solve for x
    x = 2,491,075,193.63/66,938.80
  6. Step 6: Final answer
    x = 37,214.22

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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.