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Finding the Fourth Proportional to 368,597.11, 552,974.54 and 208,748.60

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Solution

The fourth proportional to 368,597.11, 552,974.54 and 208,748.60 is: 313,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,597.11 : 552,974.54 = 208,748.60 : x
  2. Step 2: Convert to fraction form
    368,597.11/552,974.54 = 208,748.60/x
  3. Step 3: Cross multiply
    368,597.11x = 552,974.54 × 208,748.60
  4. Step 4: Simplify right side
    368,597.11x = 115,432,658,817.64
  5. Step 5: Solve for x
    x = 115,432,658,817.64/368,597.11
  6. Step 6: Final answer
    x = 313,167.57

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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.