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Finding the Fourth Proportional to 340,642.92, 511,039.44 and 104,004.12

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Solution

The fourth proportional to 340,642.92, 511,039.44 and 104,004.12 is: 156,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,642.92 : 511,039.44 = 104,004.12 : x
  2. Step 2: Convert to fraction form
    340,642.92/511,039.44 = 104,004.12/x
  3. Step 3: Cross multiply
    340,642.92x = 511,039.44 × 104,004.12
  4. Step 4: Simplify right side
    340,642.92x = 53,150,207,242.49
  5. Step 5: Solve for x
    x = 53,150,207,242.49/340,642.92
  6. Step 6: Final answer
    x = 156,029.10

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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.