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Finding the Fourth Proportional to 68,703.85, 94,763.89 and 48,329.11

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Solution

The fourth proportional to 68,703.85, 94,763.89 and 48,329.11 is: 66,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,703.85 : 94,763.89 = 48,329.11 : x
  2. Step 2: Convert to fraction form
    68,703.85/94,763.89 = 48,329.11/x
  3. Step 3: Cross multiply
    68,703.85x = 94,763.89 × 48,329.11
  4. Step 4: Simplify right side
    68,703.85x = 4,579,854,222.19
  5. Step 5: Solve for x
    x = 4,579,854,222.19/68,703.85
  6. Step 6: Final answer
    x = 66,660.81

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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.