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Finding the Fourth Proportional to 115,034.60, 172,649.10 and 44,964.20

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Solution

The fourth proportional to 115,034.60, 172,649.10 and 44,964.20 is: 67,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,034.60 : 172,649.10 = 44,964.20 : x
  2. Step 2: Convert to fraction form
    115,034.60/172,649.10 = 44,964.20/x
  3. Step 3: Cross multiply
    115,034.60x = 172,649.10 × 44,964.20
  4. Step 4: Simplify right side
    115,034.60x = 7,763,028,662.22
  5. Step 5: Solve for x
    x = 7,763,028,662.22/115,034.60
  6. Step 6: Final answer
    x = 67,484.29

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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.