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Finding the Fourth Proportional to 401,079.38, 601,606.76 and 164,243.68

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Solution

The fourth proportional to 401,079.38, 601,606.76 and 164,243.68 is: 246,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,079.38 : 601,606.76 = 164,243.68 : x
  2. Step 2: Convert to fraction form
    401,079.38/601,606.76 = 164,243.68/x
  3. Step 3: Cross multiply
    401,079.38x = 601,606.76 × 164,243.68
  4. Step 4: Simplify right side
    401,079.38x = 98,810,105,850.04
  5. Step 5: Solve for x
    x = 98,810,105,850.04/401,079.38
  6. Step 6: Final answer
    x = 246,360.48

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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.