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Finding the Fourth Proportional to 79,798.64, 110,128.70 and 43,995.65

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Solution

The fourth proportional to 79,798.64, 110,128.70 and 43,995.65 is: 60,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.64 : 110,128.70 = 43,995.65 : x
  2. Step 2: Convert to fraction form
    79,798.64/110,128.70 = 43,995.65/x
  3. Step 3: Cross multiply
    79,798.64x = 110,128.70 × 43,995.65
  4. Step 4: Simplify right side
    79,798.64x = 4,845,183,299.50
  5. Step 5: Solve for x
    x = 4,845,183,299.50/79,798.64
  6. Step 6: Final answer
    x = 60,717.62

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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.