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Finding the Fourth Proportional to 79,020.86, 109,036.88 and 44,564.08

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Solution

The fourth proportional to 79,020.86, 109,036.88 and 44,564.08 is: 61,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,020.86 : 109,036.88 = 44,564.08 : x
  2. Step 2: Convert to fraction form
    79,020.86/109,036.88 = 44,564.08/x
  3. Step 3: Cross multiply
    79,020.86x = 109,036.88 × 44,564.08
  4. Step 4: Simplify right side
    79,020.86x = 4,859,128,243.27
  5. Step 5: Solve for x
    x = 4,859,128,243.27/79,020.86
  6. Step 6: Final answer
    x = 61,491.72

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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.