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Finding the Fourth Proportional to 368,208.78, 552,307.60 and 165,661.84

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Solution

The fourth proportional to 368,208.78, 552,307.60 and 165,661.84 is: 248,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,208.78 : 552,307.60 = 165,661.84 : x
  2. Step 2: Convert to fraction form
    368,208.78/552,307.60 = 165,661.84/x
  3. Step 3: Cross multiply
    368,208.78x = 552,307.60 × 165,661.84
  4. Step 4: Simplify right side
    368,208.78x = 91,496,293,261.98
  5. Step 5: Solve for x
    x = 91,496,293,261.98/368,208.78
  6. Step 6: Final answer
    x = 248,490.25

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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.