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Finding the Fourth Proportional to 165,247.86, 247,887.90 and 52,899.78

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Solution

The fourth proportional to 165,247.86, 247,887.90 and 52,899.78 is: 79,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,247.86 : 247,887.90 = 52,899.78 : x
  2. Step 2: Convert to fraction form
    165,247.86/247,887.90 = 52,899.78/x
  3. Step 3: Cross multiply
    165,247.86x = 247,887.90 × 52,899.78
  4. Step 4: Simplify right side
    165,247.86x = 13,113,215,374.66
  5. Step 5: Solve for x
    x = 13,113,215,374.66/165,247.86
  6. Step 6: Final answer
    x = 79,354.83

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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.