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Finding the Fourth Proportional to 115,907.77, 173,861.65 and 63,288.55

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Solution

The fourth proportional to 115,907.77, 173,861.65 and 63,288.55 is: 94,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,907.77 : 173,861.65 = 63,288.55 : x
  2. Step 2: Convert to fraction form
    115,907.77/173,861.65 = 63,288.55/x
  3. Step 3: Cross multiply
    115,907.77x = 173,861.65 × 63,288.55
  4. Step 4: Simplify right side
    115,907.77x = 11,003,450,859.80
  5. Step 5: Solve for x
    x = 11,003,450,859.80/115,907.77
  6. Step 6: Final answer
    x = 94,932.82

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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.