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Finding the Fourth Proportional to 103,702.59, 155,553.60 and 68,634.18

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Solution

The fourth proportional to 103,702.59, 155,553.60 and 68,634.18 is: 102,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,702.59 : 155,553.60 = 68,634.18 : x
  2. Step 2: Convert to fraction form
    103,702.59/155,553.60 = 68,634.18/x
  3. Step 3: Cross multiply
    103,702.59x = 155,553.60 × 68,634.18
  4. Step 4: Simplify right side
    103,702.59x = 10,676,293,782.05
  5. Step 5: Solve for x
    x = 10,676,293,782.05/103,702.59
  6. Step 6: Final answer
    x = 102,951.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.