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Finding the Fourth Proportional to 119,642.33, 165,106.43 and 69,370.49

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Solution

The fourth proportional to 119,642.33, 165,106.43 and 69,370.49 is: 95,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,642.33 : 165,106.43 = 69,370.49 : x
  2. Step 2: Convert to fraction form
    119,642.33/165,106.43 = 69,370.49/x
  3. Step 3: Cross multiply
    119,642.33x = 165,106.43 × 69,370.49
  4. Step 4: Simplify right side
    119,642.33x = 11,453,513,951.25
  5. Step 5: Solve for x
    x = 11,453,513,951.25/119,642.33
  6. Step 6: Final answer
    x = 95,731.28

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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.