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Finding the Fourth Proportional to 267,812.40, 401,977.80 and 162,836.40

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Solution

The fourth proportional to 267,812.40, 401,977.80 and 162,836.40 is: 244,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,812.40 : 401,977.80 = 162,836.40 : x
  2. Step 2: Convert to fraction form
    267,812.40/401,977.80 = 162,836.40/x
  3. Step 3: Cross multiply
    267,812.40x = 401,977.80 × 162,836.40
  4. Step 4: Simplify right side
    267,812.40x = 65,456,617,831.92
  5. Step 5: Solve for x
    x = 65,456,617,831.92/267,812.40
  6. Step 6: Final answer
    x = 244,412.20

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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.