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Finding the Fourth Proportional to 79,644.48, 109,907.06 and 43,834.48

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Solution

The fourth proportional to 79,644.48, 109,907.06 and 43,834.48 is: 60,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,644.48 : 109,907.06 = 43,834.48 : x
  2. Step 2: Convert to fraction form
    79,644.48/109,907.06 = 43,834.48/x
  3. Step 3: Cross multiply
    79,644.48x = 109,907.06 × 43,834.48
  4. Step 4: Simplify right side
    79,644.48x = 4,817,718,823.43
  5. Step 5: Solve for x
    x = 4,817,718,823.43/79,644.48
  6. Step 6: Final answer
    x = 60,490.30

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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.