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Finding the Fourth Proportional to 77,910.58, 107,517.09 and 59,014.90

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Solution

The fourth proportional to 77,910.58, 107,517.09 and 59,014.90 is: 81,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,910.58 : 107,517.09 = 59,014.90 : x
  2. Step 2: Convert to fraction form
    77,910.58/107,517.09 = 59,014.90/x
  3. Step 3: Cross multiply
    77,910.58x = 107,517.09 × 59,014.90
  4. Step 4: Simplify right side
    77,910.58x = 6,345,110,314.64
  5. Step 5: Solve for x
    x = 6,345,110,314.64/77,910.58
  6. Step 6: Final answer
    x = 81,440.93

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1.5x scale

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.