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Finding the Fourth Proportional to 252,486.78, 348,448.83 and 145,099.62

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Solution

The fourth proportional to 252,486.78, 348,448.83 and 145,099.62 is: 200,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,486.78 : 348,448.83 = 145,099.62 : x
  2. Step 2: Convert to fraction form
    252,486.78/348,448.83 = 145,099.62/x
  3. Step 3: Cross multiply
    252,486.78x = 348,448.83 × 145,099.62
  4. Step 4: Simplify right side
    252,486.78x = 50,559,792,822.44
  5. Step 5: Solve for x
    x = 50,559,792,822.44/252,486.78
  6. Step 6: Final answer
    x = 200,247.29

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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.