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Finding the Fourth Proportional to 79,506.54, 109,678.59 and 60,610.86

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Solution

The fourth proportional to 79,506.54, 109,678.59 and 60,610.86 is: 83,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,506.54 : 109,678.59 = 60,610.86 : x
  2. Step 2: Convert to fraction form
    79,506.54/109,678.59 = 60,610.86/x
  3. Step 3: Cross multiply
    79,506.54x = 109,678.59 × 60,610.86
  4. Step 4: Simplify right side
    79,506.54x = 6,647,713,663.49
  5. Step 5: Solve for x
    x = 6,647,713,663.49/79,506.54
  6. Step 6: Final answer
    x = 83,612.16

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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.