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Finding the Fourth Proportional to 62,805.84, 94,198.95 and 40,775.46

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Solution

The fourth proportional to 62,805.84, 94,198.95 and 40,775.46 is: 61,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,805.84 : 94,198.95 = 40,775.46 : x
  2. Step 2: Convert to fraction form
    62,805.84/94,198.95 = 40,775.46/x
  3. Step 3: Cross multiply
    62,805.84x = 94,198.95 × 40,775.46
  4. Step 4: Simplify right side
    62,805.84x = 3,841,005,517.77
  5. Step 5: Solve for x
    x = 3,841,005,517.77/62,805.84
  6. Step 6: Final answer
    x = 61,156.82

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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.