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Finding the Fourth Proportional to 368,662.86, 552,562.74 and 140,809.14

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Solution

The fourth proportional to 368,662.86, 552,562.74 and 140,809.14 is: 211,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,662.86 : 552,562.74 = 140,809.14 : x
  2. Step 2: Convert to fraction form
    368,662.86/552,562.74 = 140,809.14/x
  3. Step 3: Cross multiply
    368,662.86x = 552,562.74 × 140,809.14
  4. Step 4: Simplify right side
    368,662.86x = 77,805,884,215.44
  5. Step 5: Solve for x
    x = 77,805,884,215.44/368,662.86
  6. Step 6: Final answer
    x = 211,048.88

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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.