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Finding the Fourth Proportional to 110,606.80, 165,910.20 and 93,326.80

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Solution

The fourth proportional to 110,606.80, 165,910.20 and 93,326.80 is: 139,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,606.80 : 165,910.20 = 93,326.80 : x
  2. Step 2: Convert to fraction form
    110,606.80/165,910.20 = 93,326.80/x
  3. Step 3: Cross multiply
    110,606.80x = 165,910.20 × 93,326.80
  4. Step 4: Simplify right side
    110,606.80x = 15,483,868,053.36
  5. Step 5: Solve for x
    x = 15,483,868,053.36/110,606.80
  6. Step 6: Final answer
    x = 139,990.20

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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.