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Finding the Fourth Proportional to 325,269.40, 487,904.10 and 114,928.60

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Solution

The fourth proportional to 325,269.40, 487,904.10 and 114,928.60 is: 172,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,269.40 : 487,904.10 = 114,928.60 : x
  2. Step 2: Convert to fraction form
    325,269.40/487,904.10 = 114,928.60/x
  3. Step 3: Cross multiply
    325,269.40x = 487,904.10 × 114,928.60
  4. Step 4: Simplify right side
    325,269.40x = 56,074,135,147.26
  5. Step 5: Solve for x
    x = 56,074,135,147.26/325,269.40
  6. Step 6: Final answer
    x = 172,392.90

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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.