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Finding the Fourth Proportional to 115,208.96, 172,837.56 and 48,649.28

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Solution

The fourth proportional to 115,208.96, 172,837.56 and 48,649.28 is: 72,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,208.96 : 172,837.56 = 48,649.28 : x
  2. Step 2: Convert to fraction form
    115,208.96/172,837.56 = 48,649.28/x
  3. Step 3: Cross multiply
    115,208.96x = 172,837.56 × 48,649.28
  4. Step 4: Simplify right side
    115,208.96x = 8,408,422,850.96
  5. Step 5: Solve for x
    x = 8,408,422,850.96/115,208.96
  6. Step 6: Final answer
    x = 72,984.11

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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.