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Finding the Fourth Proportional to 103,273.32, 155,169.54 and 65,850.60

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Solution

The fourth proportional to 103,273.32, 155,169.54 and 65,850.60 is: 98,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,273.32 : 155,169.54 = 65,850.60 : x
  2. Step 2: Convert to fraction form
    103,273.32/155,169.54 = 65,850.60/x
  3. Step 3: Cross multiply
    103,273.32x = 155,169.54 × 65,850.60
  4. Step 4: Simplify right side
    103,273.32x = 10,218,007,310.72
  5. Step 5: Solve for x
    x = 10,218,007,310.72/103,273.32
  6. Step 6: Final answer
    x = 98,941.40

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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.