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Finding the Fourth Proportional to 368,436.27, 552,654.40 and 102,196.78

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Solution

The fourth proportional to 368,436.27, 552,654.40 and 102,196.78 is: 153,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,436.27 : 552,654.40 = 102,196.78 : x
  2. Step 2: Convert to fraction form
    368,436.27/552,654.40 = 102,196.78/x
  3. Step 3: Cross multiply
    368,436.27x = 552,654.40 × 102,196.78
  4. Step 4: Simplify right side
    368,436.27x = 56,479,501,514.47
  5. Step 5: Solve for x
    x = 56,479,501,514.47/368,436.27
  6. Step 6: Final answer
    x = 153,295.17

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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.