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Finding the Fourth Proportional to 248,653.20, 372,979.80 and 61,664.70

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Solution

The fourth proportional to 248,653.20, 372,979.80 and 61,664.70 is: 92,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,653.20 : 372,979.80 = 61,664.70 : x
  2. Step 2: Convert to fraction form
    248,653.20/372,979.80 = 61,664.70/x
  3. Step 3: Cross multiply
    248,653.20x = 372,979.80 × 61,664.70
  4. Step 4: Simplify right side
    248,653.20x = 22,999,687,473.06
  5. Step 5: Solve for x
    x = 22,999,687,473.06/248,653.20
  6. Step 6: Final answer
    x = 92,497.05

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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.