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Finding the Fourth Proportional to 269,828.50, 404,762.40 and 103,616.50

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Solution

The fourth proportional to 269,828.50, 404,762.40 and 103,616.50 is: 155,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,828.50 : 404,762.40 = 103,616.50 : x
  2. Step 2: Convert to fraction form
    269,828.50/404,762.40 = 103,616.50/x
  3. Step 3: Cross multiply
    269,828.50x = 404,762.40 × 103,616.50
  4. Step 4: Simplify right side
    269,828.50x = 41,940,063,219.60
  5. Step 5: Solve for x
    x = 41,940,063,219.60/269,828.50
  6. Step 6: Final answer
    x = 155,432.30

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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.