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Finding the Fourth Proportional to 115,257.62, 172,904.88 and 48,698.39

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Solution

The fourth proportional to 115,257.62, 172,904.88 and 48,698.39 is: 73,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,257.62 : 172,904.88 = 48,698.39 : x
  2. Step 2: Convert to fraction form
    115,257.62/172,904.88 = 48,698.39/x
  3. Step 3: Cross multiply
    115,257.62x = 172,904.88 × 48,698.39
  4. Step 4: Simplify right side
    115,257.62x = 8,420,189,279.14
  5. Step 5: Solve for x
    x = 8,420,189,279.14/115,257.62
  6. Step 6: Final answer
    x = 73,055.38

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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.