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Finding the Fourth Proportional to 68,521.89, 94,532.49 and 45,562.71

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Solution

The fourth proportional to 68,521.89, 94,532.49 and 45,562.71 is: 62,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,521.89 : 94,532.49 = 45,562.71 : x
  2. Step 2: Convert to fraction form
    68,521.89/94,532.49 = 45,562.71/x
  3. Step 3: Cross multiply
    68,521.89x = 94,532.49 × 45,562.71
  4. Step 4: Simplify right side
    68,521.89x = 4,307,156,427.45
  5. Step 5: Solve for x
    x = 4,307,156,427.45/68,521.89
  6. Step 6: Final answer
    x = 62,858.11

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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.