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Finding the Fourth Proportional to 115,115.04, 172,750.80 and 41,243.04

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Solution

The fourth proportional to 115,115.04, 172,750.80 and 41,243.04 is: 61,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,115.04 : 172,750.80 = 41,243.04 : x
  2. Step 2: Convert to fraction form
    115,115.04/172,750.80 = 41,243.04/x
  3. Step 3: Cross multiply
    115,115.04x = 172,750.80 × 41,243.04
  4. Step 4: Simplify right side
    115,115.04x = 7,124,768,154.43
  5. Step 5: Solve for x
    x = 7,124,768,154.43/115,115.04
  6. Step 6: Final answer
    x = 61,892.59

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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.