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Finding the Fourth Proportional to 85,788.86, 118,389.98 and 48,063.11

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Solution

The fourth proportional to 85,788.86, 118,389.98 and 48,063.11 is: 66,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,788.86 : 118,389.98 = 48,063.11 : x
  2. Step 2: Convert to fraction form
    85,788.86/118,389.98 = 48,063.11/x
  3. Step 3: Cross multiply
    85,788.86x = 118,389.98 × 48,063.11
  4. Step 4: Simplify right side
    85,788.86x = 5,690,190,159.85
  5. Step 5: Solve for x
    x = 5,690,190,159.85/85,788.86
  6. Step 6: Final answer
    x = 66,327.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.