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Finding the Fourth Proportional to 368,046.56, 552,186.48 and 131,384

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Solution

The fourth proportional to 368,046.56, 552,186.48 and 131,384 is: 197,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,046.56 : 552,186.48 = 131,384 : x
  2. Step 2: Convert to fraction form
    368,046.56/552,186.48 = 131,384/x
  3. Step 3: Cross multiply
    368,046.56x = 552,186.48 × 131,384
  4. Step 4: Simplify right side
    368,046.56x = 72,548,468,488.32
  5. Step 5: Solve for x
    x = 72,548,468,488.32/368,046.56
  6. Step 6: Final answer
    x = 197,117.64

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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.