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Finding the Fourth Proportional to 91,392.48, 137,100 and 44,610

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Solution

The fourth proportional to 91,392.48, 137,100 and 44,610 is: 66,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,392.48 : 137,100 = 44,610 : x
  2. Step 2: Convert to fraction form
    91,392.48/137,100 = 44,610/x
  3. Step 3: Cross multiply
    91,392.48x = 137,100 × 44,610
  4. Step 4: Simplify right side
    91,392.48x = 6,116,031,000
  5. Step 5: Solve for x
    x = 6,116,031,000/91,392.48
  6. Step 6: Final answer
    x = 66,920.51

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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.