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Finding the Fourth Proportional to 113,167.75, 169,788.45 and 53,995.75

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Solution

The fourth proportional to 113,167.75, 169,788.45 and 53,995.75 is: 81,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,167.75 : 169,788.45 = 53,995.75 : x
  2. Step 2: Convert to fraction form
    113,167.75/169,788.45 = 53,995.75/x
  3. Step 3: Cross multiply
    113,167.75x = 169,788.45 × 53,995.75
  4. Step 4: Simplify right side
    113,167.75x = 9,167,854,699.09
  5. Step 5: Solve for x
    x = 9,167,854,699.09/113,167.75
  6. Step 6: Final answer
    x = 81,011.20

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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.