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Finding the Fourth Proportional to 368,377.86, 552,566.82 and 102,138.38

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Solution

The fourth proportional to 368,377.86, 552,566.82 and 102,138.38 is: 153,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,377.86 : 552,566.82 = 102,138.38 : x
  2. Step 2: Convert to fraction form
    368,377.86/552,566.82 = 102,138.38/x
  3. Step 3: Cross multiply
    368,377.86x = 552,566.82 × 102,138.38
  4. Step 4: Simplify right side
    368,377.86x = 56,438,279,836.55
  5. Step 5: Solve for x
    x = 56,438,279,836.55/368,377.86
  6. Step 6: Final answer
    x = 153,207.58

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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.