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Finding the Fourth Proportional to 119,575.22, 165,021.29 and 65,860.22

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Solution

The fourth proportional to 119,575.22, 165,021.29 and 65,860.22 is: 90,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,575.22 : 165,021.29 = 65,860.22 : x
  2. Step 2: Convert to fraction form
    119,575.22/165,021.29 = 65,860.22/x
  3. Step 3: Cross multiply
    119,575.22x = 165,021.29 × 65,860.22
  4. Step 4: Simplify right side
    119,575.22x = 10,868,337,803.63
  5. Step 5: Solve for x
    x = 10,868,337,803.63/119,575.22
  6. Step 6: Final answer
    x = 90,891.22

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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.