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Finding the Fourth Proportional to 248,049.76, 342,188.40 and 147,376.48

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Solution

The fourth proportional to 248,049.76, 342,188.40 and 147,376.48 is: 203,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,049.76 : 342,188.40 = 147,376.48 : x
  2. Step 2: Convert to fraction form
    248,049.76/342,188.40 = 147,376.48/x
  3. Step 3: Cross multiply
    248,049.76x = 342,188.40 × 147,376.48
  4. Step 4: Simplify right side
    248,049.76x = 50,430,521,888.83
  5. Step 5: Solve for x
    x = 50,430,521,888.83/248,049.76
  6. Step 6: Final answer
    x = 203,308.09

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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.