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Finding the Fourth Proportional to 187,798.82, 259,187.19 and 107,208.14

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Solution

The fourth proportional to 187,798.82, 259,187.19 and 107,208.14 is: 147,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,798.82 : 259,187.19 = 107,208.14 : x
  2. Step 2: Convert to fraction form
    187,798.82/259,187.19 = 107,208.14/x
  3. Step 3: Cross multiply
    187,798.82x = 259,187.19 × 107,208.14
  4. Step 4: Simplify right side
    187,798.82x = 27,786,976,551.73
  5. Step 5: Solve for x
    x = 27,786,976,551.73/187,798.82
  6. Step 6: Final answer
    x = 147,961.40

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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.