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Finding the Fourth Proportional to 113,179.96, 169,536.66 and 66,290.68

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Solution

The fourth proportional to 113,179.96, 169,536.66 and 66,290.68 is: 99,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,179.96 : 169,536.66 = 66,290.68 : x
  2. Step 2: Convert to fraction form
    113,179.96/169,536.66 = 66,290.68/x
  3. Step 3: Cross multiply
    113,179.96x = 169,536.66 × 66,290.68
  4. Step 4: Simplify right side
    113,179.96x = 11,238,700,476.33
  5. Step 5: Solve for x
    x = 11,238,700,476.33/113,179.96
  6. Step 6: Final answer
    x = 99,299.39

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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.