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Finding the Fourth Proportional to 325,286.32, 487,880.16 and 88,647.88

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Solution

The fourth proportional to 325,286.32, 487,880.16 and 88,647.88 is: 132,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,286.32 : 487,880.16 = 88,647.88 : x
  2. Step 2: Convert to fraction form
    325,286.32/487,880.16 = 88,647.88/x
  3. Step 3: Cross multiply
    325,286.32x = 487,880.16 × 88,647.88
  4. Step 4: Simplify right side
    325,286.32x = 43,249,541,878.06
  5. Step 5: Solve for x
    x = 43,249,541,878.06/325,286.32
  6. Step 6: Final answer
    x = 132,958.38

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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.