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Finding the Fourth Proportional to 68,302.47, 94,254.94 and 39,622.70

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Solution

The fourth proportional to 68,302.47, 94,254.94 and 39,622.70 is: 54,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,302.47 : 94,254.94 = 39,622.70 : x
  2. Step 2: Convert to fraction form
    68,302.47/94,254.94 = 39,622.70/x
  3. Step 3: Cross multiply
    68,302.47x = 94,254.94 × 39,622.70
  4. Step 4: Simplify right side
    68,302.47x = 3,734,635,496.30
  5. Step 5: Solve for x
    x = 3,734,635,496.30/68,302.47
  6. Step 6: Final answer
    x = 54,677.90

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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.