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Finding the Fourth Proportional to 78,808.43, 108,755.10 and 44,816.93

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Solution

The fourth proportional to 78,808.43, 108,755.10 and 44,816.93 is: 61,847.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,808.43 : 108,755.10 = 44,816.93 : x
  2. Step 2: Convert to fraction form
    78,808.43/108,755.10 = 44,816.93/x
  3. Step 3: Cross multiply
    78,808.43x = 108,755.10 × 44,816.93
  4. Step 4: Simplify right side
    78,808.43x = 4,874,069,703.84
  5. Step 5: Solve for x
    x = 4,874,069,703.84/78,808.43
  6. Step 6: Final answer
    x = 61,847.06

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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.