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Finding the Fourth Proportional to 97,313.80, 145,959.90 and 27,200.20

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Solution

The fourth proportional to 97,313.80, 145,959.90 and 27,200.20 is: 40,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,313.80 : 145,959.90 = 27,200.20 : x
  2. Step 2: Convert to fraction form
    97,313.80/145,959.90 = 27,200.20/x
  3. Step 3: Cross multiply
    97,313.80x = 145,959.90 × 27,200.20
  4. Step 4: Simplify right side
    97,313.80x = 3,970,138,471.98
  5. Step 5: Solve for x
    x = 3,970,138,471.98/97,313.80
  6. Step 6: Final answer
    x = 40,797.28

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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.