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Finding the Fourth Proportional to 119,675.88, 165,162.21 and 65,970.45

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Solution

The fourth proportional to 119,675.88, 165,162.21 and 65,970.45 is: 91,044.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,675.88 : 165,162.21 = 65,970.45 : x
  2. Step 2: Convert to fraction form
    119,675.88/165,162.21 = 65,970.45/x
  3. Step 3: Cross multiply
    119,675.88x = 165,162.21 × 65,970.45
  4. Step 4: Simplify right side
    119,675.88x = 10,895,825,316.69
  5. Step 5: Solve for x
    x = 10,895,825,316.69/119,675.88
  6. Step 6: Final answer
    x = 91,044.46

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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.