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Finding the Fourth Proportional to 115,051.20, 172,474.20 and 44,914.20

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Solution

The fourth proportional to 115,051.20, 172,474.20 and 44,914.20 is: 67,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,051.20 : 172,474.20 = 44,914.20 : x
  2. Step 2: Convert to fraction form
    115,051.20/172,474.20 = 44,914.20/x
  3. Step 3: Cross multiply
    115,051.20x = 172,474.20 × 44,914.20
  4. Step 4: Simplify right side
    115,051.20x = 7,746,540,713.64
  5. Step 5: Solve for x
    x = 7,746,540,713.64/115,051.20
  6. Step 6: Final answer
    x = 67,331.25

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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.