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Finding the Fourth Proportional to 119,730.48, 165,226.08 and 66,020.48

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Solution

The fourth proportional to 119,730.48, 165,226.08 and 66,020.48 is: 91,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,730.48 : 165,226.08 = 66,020.48 : x
  2. Step 2: Convert to fraction form
    119,730.48/165,226.08 = 66,020.48/x
  3. Step 3: Cross multiply
    119,730.48x = 165,226.08 × 66,020.48
  4. Step 4: Simplify right side
    119,730.48x = 10,908,305,110.12
  5. Step 5: Solve for x
    x = 10,908,305,110.12/119,730.48
  6. Step 6: Final answer
    x = 91,107.17

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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.