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Finding the Fourth Proportional to 165,117.80, 247,676.70 and 59,940.20

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Solution

The fourth proportional to 165,117.80, 247,676.70 and 59,940.20 is: 89,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,117.80 : 247,676.70 = 59,940.20 : x
  2. Step 2: Convert to fraction form
    165,117.80/247,676.70 = 59,940.20/x
  3. Step 3: Cross multiply
    165,117.80x = 247,676.70 × 59,940.20
  4. Step 4: Simplify right side
    165,117.80x = 14,845,790,933.34
  5. Step 5: Solve for x
    x = 14,845,790,933.34/165,117.80
  6. Step 6: Final answer
    x = 89,910.30

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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.