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Finding the Fourth Proportional to 115,699.56, 173,626.81 and 40,819.88

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Solution

The fourth proportional to 115,699.56, 173,626.81 and 40,819.88 is: 61,257.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,699.56 : 173,626.81 = 40,819.88 : x
  2. Step 2: Convert to fraction form
    115,699.56/173,626.81 = 40,819.88/x
  3. Step 3: Cross multiply
    115,699.56x = 173,626.81 × 40,819.88
  4. Step 4: Simplify right side
    115,699.56x = 7,087,425,881.00
  5. Step 5: Solve for x
    x = 7,087,425,881.00/115,699.56
  6. Step 6: Final answer
    x = 61,257.16

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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.