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Finding the Fourth Proportional to 207,266.80, 310,900.20 and 74,151.40

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Solution

The fourth proportional to 207,266.80, 310,900.20 and 74,151.40 is: 111,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,266.80 : 310,900.20 = 74,151.40 : x
  2. Step 2: Convert to fraction form
    207,266.80/310,900.20 = 74,151.40/x
  3. Step 3: Cross multiply
    207,266.80x = 310,900.20 × 74,151.40
  4. Step 4: Simplify right side
    207,266.80x = 23,053,685,090.28
  5. Step 5: Solve for x
    x = 23,053,685,090.28/207,266.80
  6. Step 6: Final answer
    x = 111,227.10

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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.