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Finding the Fourth Proportional to 91,394.42, 137,159.00 and 43,363.23

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Solution

The fourth proportional to 91,394.42, 137,159.00 and 43,363.23 is: 65,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,394.42 : 137,159.00 = 43,363.23 : x
  2. Step 2: Convert to fraction form
    91,394.42/137,159.00 = 43,363.23/x
  3. Step 3: Cross multiply
    91,394.42x = 137,159.00 × 43,363.23
  4. Step 4: Simplify right side
    91,394.42x = 5,947,656,816.98
  5. Step 5: Solve for x
    x = 5,947,656,816.98/91,394.42
  6. Step 6: Final answer
    x = 65,076.81

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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.