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Finding the Fourth Proportional to 103,759.11, 143,188.16 and 59,047.11

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Solution

The fourth proportional to 103,759.11, 143,188.16 and 59,047.11 is: 81,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,759.11 : 143,188.16 = 59,047.11 : x
  2. Step 2: Convert to fraction form
    103,759.11/143,188.16 = 59,047.11/x
  3. Step 3: Cross multiply
    103,759.11x = 143,188.16 × 59,047.11
  4. Step 4: Simplify right side
    103,759.11x = 8,454,846,738.98
  5. Step 5: Solve for x
    x = 8,454,846,738.98/103,759.11
  6. Step 6: Final answer
    x = 81,485.34

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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.