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Finding the Fourth Proportional to 269,912.40, 404,868.60 and 92,403.60

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Solution

The fourth proportional to 269,912.40, 404,868.60 and 92,403.60 is: 138,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,912.40 : 404,868.60 = 92,403.60 : x
  2. Step 2: Convert to fraction form
    269,912.40/404,868.60 = 92,403.60/x
  3. Step 3: Cross multiply
    269,912.40x = 404,868.60 × 92,403.60
  4. Step 4: Simplify right side
    269,912.40x = 37,411,316,166.96
  5. Step 5: Solve for x
    x = 37,411,316,166.96/269,912.40
  6. Step 6: Final answer
    x = 138,605.40

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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.