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Finding the Fourth Proportional to 113,170.88, 169,755.65 and 28,930.91

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Solution

The fourth proportional to 113,170.88, 169,755.65 and 28,930.91 is: 43,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,170.88 : 169,755.65 = 28,930.91 : x
  2. Step 2: Convert to fraction form
    113,170.88/169,755.65 = 28,930.91/x
  3. Step 3: Cross multiply
    113,170.88x = 169,755.65 × 28,930.91
  4. Step 4: Simplify right side
    113,170.88x = 4,911,185,486.15
  5. Step 5: Solve for x
    x = 4,911,185,486.15/113,170.88
  6. Step 6: Final answer
    x = 43,396.19

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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.