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Finding the Fourth Proportional to 272,998.40, 409,497.60 and 248,066.60

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Solution

The fourth proportional to 272,998.40, 409,497.60 and 248,066.60 is: 372,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,998.40 : 409,497.60 = 248,066.60 : x
  2. Step 2: Convert to fraction form
    272,998.40/409,497.60 = 248,066.60/x
  3. Step 3: Cross multiply
    272,998.40x = 409,497.60 × 248,066.60
  4. Step 4: Simplify right side
    272,998.40x = 101,582,677,340.16
  5. Step 5: Solve for x
    x = 101,582,677,340.16/272,998.40
  6. Step 6: Final answer
    x = 372,099.90

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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.