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Finding the Fourth Proportional to 119,710.88, 165,195.96 and 65,261.87

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Solution

The fourth proportional to 119,710.88, 165,195.96 and 65,261.87 is: 90,058.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,710.88 : 165,195.96 = 65,261.87 : x
  2. Step 2: Convert to fraction form
    119,710.88/165,195.96 = 65,261.87/x
  3. Step 3: Cross multiply
    119,710.88x = 165,195.96 × 65,261.87
  4. Step 4: Simplify right side
    119,710.88x = 10,780,996,814.82
  5. Step 5: Solve for x
    x = 10,780,996,814.82/119,710.88
  6. Step 6: Final answer
    x = 90,058.62

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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.