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Finding the Fourth Proportional to 267,365.80, 400,919.10 and 148,911.40

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Solution

The fourth proportional to 267,365.80, 400,919.10 and 148,911.40 is: 223,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,365.80 : 400,919.10 = 148,911.40 : x
  2. Step 2: Convert to fraction form
    267,365.80/400,919.10 = 148,911.40/x
  3. Step 3: Cross multiply
    267,365.80x = 400,919.10 × 148,911.40
  4. Step 4: Simplify right side
    267,365.80x = 59,701,424,467.74
  5. Step 5: Solve for x
    x = 59,701,424,467.74/267,365.80
  6. Step 6: Final answer
    x = 223,294.92

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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.