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Finding the Fourth Proportional to 267,369.50, 368,969.91 and 148,137.50

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Solution

The fourth proportional to 267,369.50, 368,969.91 and 148,137.50 is: 204,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,369.50 : 368,969.91 = 148,137.50 : x
  2. Step 2: Convert to fraction form
    267,369.50/368,969.91 = 148,137.50/x
  3. Step 3: Cross multiply
    267,369.50x = 368,969.91 × 148,137.50
  4. Step 4: Simplify right side
    267,369.50x = 54,658,280,042.63
  5. Step 5: Solve for x
    x = 54,658,280,042.63/267,369.50
  6. Step 6: Final answer
    x = 204,429.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.