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Finding the Fourth Proportional to 91,777.59, 137,716.53 and 35,619.93

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Solution

The fourth proportional to 91,777.59, 137,716.53 and 35,619.93 is: 53,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,777.59 : 137,716.53 = 35,619.93 : x
  2. Step 2: Convert to fraction form
    91,777.59/137,716.53 = 35,619.93/x
  3. Step 3: Cross multiply
    91,777.59x = 137,716.53 × 35,619.93
  4. Step 4: Simplify right side
    91,777.59x = 4,905,453,158.44
  5. Step 5: Solve for x
    x = 4,905,453,158.44/91,777.59
  6. Step 6: Final answer
    x = 53,449.36

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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.