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Finding the Fourth Proportional to 68,745.17, 103,047.70 and 62,684.77

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Solution

The fourth proportional to 68,745.17, 103,047.70 and 62,684.77 is: 93,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,745.17 : 103,047.70 = 62,684.77 : x
  2. Step 2: Convert to fraction form
    68,745.17/103,047.70 = 62,684.77/x
  3. Step 3: Cross multiply
    68,745.17x = 103,047.70 × 62,684.77
  4. Step 4: Simplify right side
    68,745.17x = 6,459,520,544.87
  5. Step 5: Solve for x
    x = 6,459,520,544.87/68,745.17
  6. Step 6: Final answer
    x = 93,963.26

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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.