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Finding the Fourth Proportional to 267,214.80, 400,822.20 and 127,246.80

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Solution

The fourth proportional to 267,214.80, 400,822.20 and 127,246.80 is: 190,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,214.80 : 400,822.20 = 127,246.80 : x
  2. Step 2: Convert to fraction form
    267,214.80/400,822.20 = 127,246.80/x
  3. Step 3: Cross multiply
    267,214.80x = 400,822.20 × 127,246.80
  4. Step 4: Simplify right side
    267,214.80x = 51,003,342,318.96
  5. Step 5: Solve for x
    x = 51,003,342,318.96/267,214.80
  6. Step 6: Final answer
    x = 190,870.20

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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.