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Finding the Fourth Proportional to 61,188.80, 91,810.75 and 33,075.95

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Solution

The fourth proportional to 61,188.80, 91,810.75 and 33,075.95 is: 49,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.80 : 91,810.75 = 33,075.95 : x
  2. Step 2: Convert to fraction form
    61,188.80/91,810.75 = 33,075.95/x
  3. Step 3: Cross multiply
    61,188.80x = 91,810.75 × 33,075.95
  4. Step 4: Simplify right side
    61,188.80x = 3,036,727,234.72
  5. Step 5: Solve for x
    x = 3,036,727,234.72/61,188.80
  6. Step 6: Final answer
    x = 49,628.81

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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.