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Finding the Fourth Proportional to 119,585.16, 165,027.24 and 65,873.79

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Solution

The fourth proportional to 119,585.16, 165,027.24 and 65,873.79 is: 90,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,585.16 : 165,027.24 = 65,873.79 : x
  2. Step 2: Convert to fraction form
    119,585.16/165,027.24 = 65,873.79/x
  3. Step 3: Cross multiply
    119,585.16x = 165,027.24 × 65,873.79
  4. Step 4: Simplify right side
    119,585.16x = 10,870,969,752.04
  5. Step 5: Solve for x
    x = 10,870,969,752.04/119,585.16
  6. Step 6: Final answer
    x = 90,905.68

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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.