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Finding the Fourth Proportional to 82,797.80, 124,196.70 and 74,244.20

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Solution

The fourth proportional to 82,797.80, 124,196.70 and 74,244.20 is: 111,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,797.80 : 124,196.70 = 74,244.20 : x
  2. Step 2: Convert to fraction form
    82,797.80/124,196.70 = 74,244.20/x
  3. Step 3: Cross multiply
    82,797.80x = 124,196.70 × 74,244.20
  4. Step 4: Simplify right side
    82,797.80x = 9,220,884,634.14
  5. Step 5: Solve for x
    x = 9,220,884,634.14/82,797.80
  6. Step 6: Final answer
    x = 111,366.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.