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Finding the Fourth Proportional to 65,777.67, 98,665.56 and 61,574.99

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Solution

The fourth proportional to 65,777.67, 98,665.56 and 61,574.99 is: 92,361.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,777.67 : 98,665.56 = 61,574.99 : x
  2. Step 2: Convert to fraction form
    65,777.67/98,665.56 = 61,574.99/x
  3. Step 3: Cross multiply
    65,777.67x = 98,665.56 × 61,574.99
  4. Step 4: Simplify right side
    65,777.67x = 6,075,330,377.02
  5. Step 5: Solve for x
    x = 6,075,330,377.02/65,777.67
  6. Step 6: Final answer
    x = 92,361.59

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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.