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Finding the Fourth Proportional to 79,940.91, 110,319.35 and 44,130.94

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Solution

The fourth proportional to 79,940.91, 110,319.35 and 44,130.94 is: 60,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,940.91 : 110,319.35 = 44,130.94 : x
  2. Step 2: Convert to fraction form
    79,940.91/110,319.35 = 44,130.94/x
  3. Step 3: Cross multiply
    79,940.91x = 110,319.35 × 44,130.94
  4. Step 4: Simplify right side
    79,940.91x = 4,868,496,615.69
  5. Step 5: Solve for x
    x = 4,868,496,615.69/79,940.91
  6. Step 6: Final answer
    x = 60,901.19

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1.5x scale

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.