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Finding the Fourth Proportional to 79,242.91, 109,357.29 and 44,784.90

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Solution

The fourth proportional to 79,242.91, 109,357.29 and 44,784.90 is: 61,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,242.91 : 109,357.29 = 44,784.90 : x
  2. Step 2: Convert to fraction form
    79,242.91/109,357.29 = 44,784.90/x
  3. Step 3: Cross multiply
    79,242.91x = 109,357.29 × 44,784.90
  4. Step 4: Simplify right side
    79,242.91x = 4,897,555,296.92
  5. Step 5: Solve for x
    x = 4,897,555,296.92/79,242.91
  6. Step 6: Final answer
    x = 61,804.34

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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.