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Finding the Fourth Proportional to 158,552.49, 218,800.75 and 86,932.33

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Solution

The fourth proportional to 158,552.49, 218,800.75 and 86,932.33 is: 119,965.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,552.49 : 218,800.75 = 86,932.33 : x
  2. Step 2: Convert to fraction form
    158,552.49/218,800.75 = 86,932.33/x
  3. Step 3: Cross multiply
    158,552.49x = 218,800.75 × 86,932.33
  4. Step 4: Simplify right side
    158,552.49x = 19,020,859,003.25
  5. Step 5: Solve for x
    x = 19,020,859,003.25/158,552.49
  6. Step 6: Final answer
    x = 119,965.69

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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.