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Finding the Fourth Proportional to 269,827.50, 404,760.90 and 103,615.50

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Solution

The fourth proportional to 269,827.50, 404,760.90 and 103,615.50 is: 155,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,827.50 : 404,760.90 = 103,615.50 : x
  2. Step 2: Convert to fraction form
    269,827.50/404,760.90 = 103,615.50/x
  3. Step 3: Cross multiply
    269,827.50x = 404,760.90 × 103,615.50
  4. Step 4: Simplify right side
    269,827.50x = 41,939,503,033.95
  5. Step 5: Solve for x
    x = 41,939,503,033.95/269,827.50
  6. Step 6: Final answer
    x = 155,430.80

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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.