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Finding the Fourth Proportional to 248,432.61, 342,722.37 and 146,388.41

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Solution

The fourth proportional to 248,432.61, 342,722.37 and 146,388.41 is: 201,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,432.61 : 342,722.37 = 146,388.41 : x
  2. Step 2: Convert to fraction form
    248,432.61/342,722.37 = 146,388.41/x
  3. Step 3: Cross multiply
    248,432.61x = 342,722.37 × 146,388.41
  4. Step 4: Simplify right side
    248,432.61x = 50,170,582,815.73
  5. Step 5: Solve for x
    x = 50,170,582,815.73/248,432.61
  6. Step 6: Final answer
    x = 201,948.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.