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Finding the Fourth Proportional to 119,577.80, 165,018.48 and 65,863.02

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Solution

The fourth proportional to 119,577.80, 165,018.48 and 65,863.02 is: 90,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,577.80 : 165,018.48 = 65,863.02 : x
  2. Step 2: Convert to fraction form
    119,577.80/165,018.48 = 65,863.02/x
  3. Step 3: Cross multiply
    119,577.80x = 165,018.48 × 65,863.02
  4. Step 4: Simplify right side
    119,577.80x = 10,868,615,448.61
  5. Step 5: Solve for x
    x = 10,868,615,448.61/119,577.80
  6. Step 6: Final answer
    x = 90,891.58

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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.