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Finding the Fourth Proportional to 325,304.41, 487,975.75 and 125,625.84

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Solution

The fourth proportional to 325,304.41, 487,975.75 and 125,625.84 is: 188,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,304.41 : 487,975.75 = 125,625.84 : x
  2. Step 2: Convert to fraction form
    325,304.41/487,975.75 = 125,625.84/x
  3. Step 3: Cross multiply
    325,304.41x = 487,975.75 × 125,625.84
  4. Step 4: Simplify right side
    325,304.41x = 61,302,363,493.38
  5. Step 5: Solve for x
    x = 61,302,363,493.38/325,304.41
  6. Step 6: Final answer
    x = 188,446.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.