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Finding the Fourth Proportional to 68,404.42, 102,617.43 and 26,282.82

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Solution

The fourth proportional to 68,404.42, 102,617.43 and 26,282.82 is: 39,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,404.42 : 102,617.43 = 26,282.82 : x
  2. Step 2: Convert to fraction form
    68,404.42/102,617.43 = 26,282.82/x
  3. Step 3: Cross multiply
    68,404.42x = 102,617.43 × 26,282.82
  4. Step 4: Simplify right side
    68,404.42x = 2,697,075,441.55
  5. Step 5: Solve for x
    x = 2,697,075,441.55/68,404.42
  6. Step 6: Final answer
    x = 39,428.38

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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.