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Finding the Fourth Proportional to 92,112.53, 138,119.58 and 32,915.90

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Solution

The fourth proportional to 92,112.53, 138,119.58 and 32,915.90 is: 49,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,112.53 : 138,119.58 = 32,915.90 : x
  2. Step 2: Convert to fraction form
    92,112.53/138,119.58 = 32,915.90/x
  3. Step 3: Cross multiply
    92,112.53x = 138,119.58 × 32,915.90
  4. Step 4: Simplify right side
    92,112.53x = 4,546,330,628.62
  5. Step 5: Solve for x
    x = 4,546,330,628.62/92,112.53
  6. Step 6: Final answer
    x = 49,356.27

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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.