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Finding the Fourth Proportional to 119,622, 165,078.36 and 69,350.16

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Solution

The fourth proportional to 119,622, 165,078.36 and 69,350.16 is: 95,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,622 : 165,078.36 = 69,350.16 : x
  2. Step 2: Convert to fraction form
    119,622/165,078.36 = 69,350.16/x
  3. Step 3: Cross multiply
    119,622x = 165,078.36 × 69,350.16
  4. Step 4: Simplify right side
    119,622x = 11,448,210,678.54
  5. Step 5: Solve for x
    x = 11,448,210,678.54/119,622
  6. Step 6: Final answer
    x = 95,703.22

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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.