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Finding the Fourth Proportional to 341,985.86, 512,978.82 and 92,667.86

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Solution

The fourth proportional to 341,985.86, 512,978.82 and 92,667.86 is: 139,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,985.86 : 512,978.82 = 92,667.86 : x
  2. Step 2: Convert to fraction form
    341,985.86/512,978.82 = 92,667.86/x
  3. Step 3: Cross multiply
    341,985.86x = 512,978.82 × 92,667.86
  4. Step 4: Simplify right side
    341,985.86x = 47,536,649,474.73
  5. Step 5: Solve for x
    x = 47,536,649,474.73/341,985.86
  6. Step 6: Final answer
    x = 139,001.80

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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.