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Finding the Fourth Proportional to 115,241.40, 172,861.80 and 32,135.40

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Solution

The fourth proportional to 115,241.40, 172,861.80 and 32,135.40 is: 48,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,241.40 : 172,861.80 = 32,135.40 : x
  2. Step 2: Convert to fraction form
    115,241.40/172,861.80 = 32,135.40/x
  3. Step 3: Cross multiply
    115,241.40x = 172,861.80 × 32,135.40
  4. Step 4: Simplify right side
    115,241.40x = 5,554,983,087.72
  5. Step 5: Solve for x
    x = 5,554,983,087.72/115,241.40
  6. Step 6: Final answer
    x = 48,203.02

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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.