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Finding the Fourth Proportional to 79,940.61, 110,318.06 and 44,130.65

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Solution

The fourth proportional to 79,940.61, 110,318.06 and 44,130.65 is: 60,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,940.61 : 110,318.06 = 44,130.65 : x
  2. Step 2: Convert to fraction form
    79,940.61/110,318.06 = 44,130.65/x
  3. Step 3: Cross multiply
    79,940.61x = 110,318.06 × 44,130.65
  4. Step 4: Simplify right side
    79,940.61x = 4,868,407,253.28
  5. Step 5: Solve for x
    x = 4,868,407,253.28/79,940.61
  6. Step 6: Final answer
    x = 60,900.30

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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.