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Finding the Fourth Proportional to 79,709.44, 110,012.16 and 60,810.88

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Solution

The fourth proportional to 79,709.44, 110,012.16 and 60,810.88 is: 83,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,709.44 : 110,012.16 = 60,810.88 : x
  2. Step 2: Convert to fraction form
    79,709.44/110,012.16 = 60,810.88/x
  3. Step 3: Cross multiply
    79,709.44x = 110,012.16 × 60,810.88
  4. Step 4: Simplify right side
    79,709.44x = 6,689,936,260.30
  5. Step 5: Solve for x
    x = 6,689,936,260.30/79,709.44
  6. Step 6: Final answer
    x = 83,929.03

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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.