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Finding the Fourth Proportional to 115,920.20, 173,837.10 and 41,011.40

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Solution

The fourth proportional to 115,920.20, 173,837.10 and 41,011.40 is: 61,501.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,920.20 : 173,837.10 = 41,011.40 : x
  2. Step 2: Convert to fraction form
    115,920.20/173,837.10 = 41,011.40/x
  3. Step 3: Cross multiply
    115,920.20x = 173,837.10 × 41,011.40
  4. Step 4: Simplify right side
    115,920.20x = 7,129,302,842.94
  5. Step 5: Solve for x
    x = 7,129,302,842.94/115,920.20
  6. Step 6: Final answer
    x = 61,501.82

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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.