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Finding the Fourth Proportional to 267,851.61, 401,779.85 and 68,172.23

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Solution

The fourth proportional to 267,851.61, 401,779.85 and 68,172.23 is: 102,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,851.61 : 401,779.85 = 68,172.23 : x
  2. Step 2: Convert to fraction form
    267,851.61/401,779.85 = 68,172.23/x
  3. Step 3: Cross multiply
    267,851.61x = 401,779.85 × 68,172.23
  4. Step 4: Simplify right side
    267,851.61x = 27,390,229,007.15
  5. Step 5: Solve for x
    x = 27,390,229,007.15/267,851.61
  6. Step 6: Final answer
    x = 102,258.97

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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.