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Finding the Fourth Proportional to 115,261.52, 172,920.06 and 36,375.50

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Solution

The fourth proportional to 115,261.52, 172,920.06 and 36,375.50 is: 54,572.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.52 : 172,920.06 = 36,375.50 : x
  2. Step 2: Convert to fraction form
    115,261.52/172,920.06 = 36,375.50/x
  3. Step 3: Cross multiply
    115,261.52x = 172,920.06 × 36,375.50
  4. Step 4: Simplify right side
    115,261.52x = 6,290,054,074.83
  5. Step 5: Solve for x
    x = 6,290,054,074.83/115,261.52
  6. Step 6: Final answer
    x = 54,572.02

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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.