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Finding the Fourth Proportional to 368,343.11, 552,514.67 and 243,654.95

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Solution

The fourth proportional to 368,343.11, 552,514.67 and 243,654.95 is: 365,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,343.11 : 552,514.67 = 243,654.95 : x
  2. Step 2: Convert to fraction form
    368,343.11/552,514.67 = 243,654.95/x
  3. Step 3: Cross multiply
    368,343.11x = 552,514.67 × 243,654.95
  4. Step 4: Simplify right side
    368,343.11x = 134,622,930,312.27
  5. Step 5: Solve for x
    x = 134,622,930,312.27/368,343.11
  6. Step 6: Final answer
    x = 365,482.42

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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.