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Finding the Fourth Proportional to 248,614.31, 372,990.30 and 98,959.69

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Solution

The fourth proportional to 248,614.31, 372,990.30 and 98,959.69 is: 148,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,614.31 : 372,990.30 = 98,959.69 : x
  2. Step 2: Convert to fraction form
    248,614.31/372,990.30 = 98,959.69/x
  3. Step 3: Cross multiply
    248,614.31x = 372,990.30 × 98,959.69
  4. Step 4: Simplify right side
    248,614.31x = 36,911,006,392.31
  5. Step 5: Solve for x
    x = 36,911,006,392.31/248,614.31
  6. Step 6: Final answer
    x = 148,466.94

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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.