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Finding the Fourth Proportional to 115,252.89, 172,837.81 and 48,698.21

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Solution

The fourth proportional to 115,252.89, 172,837.81 and 48,698.21 is: 73,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,252.89 : 172,837.81 = 48,698.21 : x
  2. Step 2: Convert to fraction form
    115,252.89/172,837.81 = 48,698.21/x
  3. Step 3: Cross multiply
    115,252.89x = 172,837.81 × 48,698.21
  4. Step 4: Simplify right side
    115,252.89x = 8,416,891,967.32
  5. Step 5: Solve for x
    x = 8,416,891,967.32/115,252.89
  6. Step 6: Final answer
    x = 73,029.77

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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.