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Finding the Fourth Proportional to 136,763.82, 188,879.58 and 104,149.58

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Solution

The fourth proportional to 136,763.82, 188,879.58 and 104,149.58 is: 143,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,763.82 : 188,879.58 = 104,149.58 : x
  2. Step 2: Convert to fraction form
    136,763.82/188,879.58 = 104,149.58/x
  3. Step 3: Cross multiply
    136,763.82x = 188,879.58 × 104,149.58
  4. Step 4: Simplify right side
    136,763.82x = 19,671,727,983.18
  5. Step 5: Solve for x
    x = 19,671,727,983.18/136,763.82
  6. Step 6: Final answer
    x = 143,837.22

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1.5x scale

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.