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Finding the Fourth Proportional to 91,576, 137,347.80 and 41,644.40

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Solution

The fourth proportional to 91,576, 137,347.80 and 41,644.40 is: 62,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,576 : 137,347.80 = 41,644.40 : x
  2. Step 2: Convert to fraction form
    91,576/137,347.80 = 41,644.40/x
  3. Step 3: Cross multiply
    91,576x = 137,347.80 × 41,644.40
  4. Step 4: Simplify right side
    91,576x = 5,719,766,722.32
  5. Step 5: Solve for x
    x = 5,719,766,722.32/91,576
  6. Step 6: Final answer
    x = 62,459.23

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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.