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Finding the Fourth Proportional to 248,631.32, 372,878.71 and 68,673.71

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Solution

The fourth proportional to 248,631.32, 372,878.71 and 68,673.71 is: 102,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,631.32 : 372,878.71 = 68,673.71 : x
  2. Step 2: Convert to fraction form
    248,631.32/372,878.71 = 68,673.71/x
  3. Step 3: Cross multiply
    248,631.32x = 372,878.71 × 68,673.71
  4. Step 4: Simplify right side
    248,631.32x = 25,606,964,395.71
  5. Step 5: Solve for x
    x = 25,606,964,395.71/248,631.32
  6. Step 6: Final answer
    x = 102,991.71

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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.