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Finding the Fourth Proportional to 110,221.70, 152,113.82 and 63,668.57

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Solution

The fourth proportional to 110,221.70, 152,113.82 and 63,668.57 is: 87,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,221.70 : 152,113.82 = 63,668.57 : x
  2. Step 2: Convert to fraction form
    110,221.70/152,113.82 = 63,668.57/x
  3. Step 3: Cross multiply
    110,221.70x = 152,113.82 × 63,668.57
  4. Step 4: Simplify right side
    110,221.70x = 9,684,868,317.73
  5. Step 5: Solve for x
    x = 9,684,868,317.73/110,221.70
  6. Step 6: Final answer
    x = 87,867.17

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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.