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Finding the Fourth Proportional to 91,771.74, 137,629.08 and 44,357.40

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Solution

The fourth proportional to 91,771.74, 137,629.08 and 44,357.40 is: 66,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771.74 : 137,629.08 = 44,357.40 : x
  2. Step 2: Convert to fraction form
    91,771.74/137,629.08 = 44,357.40/x
  3. Step 3: Cross multiply
    91,771.74x = 137,629.08 × 44,357.40
  4. Step 4: Simplify right side
    91,771.74x = 6,104,868,153.19
  5. Step 5: Solve for x
    x = 6,104,868,153.19/91,771.74
  6. Step 6: Final answer
    x = 66,522.31

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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.