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Finding the Fourth Proportional to 325,087.97, 448,711.56 and 189,148.17

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Solution

The fourth proportional to 325,087.97, 448,711.56 and 189,148.17 is: 261,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,087.97 : 448,711.56 = 189,148.17 : x
  2. Step 2: Convert to fraction form
    325,087.97/448,711.56 = 189,148.17/x
  3. Step 3: Cross multiply
    325,087.97x = 448,711.56 × 189,148.17
  4. Step 4: Simplify right side
    325,087.97x = 84,872,972,114.51
  5. Step 5: Solve for x
    x = 84,872,972,114.51/325,087.97
  6. Step 6: Final answer
    x = 261,076.94

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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.