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Finding the Fourth Proportional to 248,610.40, 372,915.60 and 61,621.90

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Solution

The fourth proportional to 248,610.40, 372,915.60 and 61,621.90 is: 92,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,610.40 : 372,915.60 = 61,621.90 : x
  2. Step 2: Convert to fraction form
    248,610.40/372,915.60 = 61,621.90/x
  3. Step 3: Cross multiply
    248,610.40x = 372,915.60 × 61,621.90
  4. Step 4: Simplify right side
    248,610.40x = 22,979,767,811.64
  5. Step 5: Solve for x
    x = 22,979,767,811.64/248,610.40
  6. Step 6: Final answer
    x = 92,432.85

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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.