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Finding the Fourth Proportional to 248,437.20, 372,670.20 and 70,957.20

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Solution

The fourth proportional to 248,437.20, 372,670.20 and 70,957.20 is: 106,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,437.20 : 372,670.20 = 70,957.20 : x
  2. Step 2: Convert to fraction form
    248,437.20/372,670.20 = 70,957.20/x
  3. Step 3: Cross multiply
    248,437.20x = 372,670.20 × 70,957.20
  4. Step 4: Simplify right side
    248,437.20x = 26,443,633,915.44
  5. Step 5: Solve for x
    x = 26,443,633,915.44/248,437.20
  6. Step 6: Final answer
    x = 106,439.91

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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.