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Finding the Fourth Proportional to 103,777.93, 155,716.10 and 61,741.05

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Solution

The fourth proportional to 103,777.93, 155,716.10 and 61,741.05 is: 92,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,777.93 : 155,716.10 = 61,741.05 : x
  2. Step 2: Convert to fraction form
    103,777.93/155,716.10 = 61,741.05/x
  3. Step 3: Cross multiply
    103,777.93x = 155,716.10 × 61,741.05
  4. Step 4: Simplify right side
    103,777.93x = 9,614,075,557.05
  5. Step 5: Solve for x
    x = 9,614,075,557.05/103,777.93
  6. Step 6: Final answer
    x = 92,640.85

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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.