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Finding the Fourth Proportional to 267,047.80, 400,830.90 and 134,078.20

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Solution

The fourth proportional to 267,047.80, 400,830.90 and 134,078.20 is: 201,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,047.80 : 400,830.90 = 134,078.20 : x
  2. Step 2: Convert to fraction form
    267,047.80/400,830.90 = 134,078.20/x
  3. Step 3: Cross multiply
    267,047.80x = 400,830.90 × 134,078.20
  4. Step 4: Simplify right side
    267,047.80x = 53,742,685,576.38
  5. Step 5: Solve for x
    x = 53,742,685,576.38/267,047.80
  6. Step 6: Final answer
    x = 201,247.44

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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.