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Finding the Fourth Proportional to 103,694.48, 155,497.69 and 43,749.85

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Solution

The fourth proportional to 103,694.48, 155,497.69 and 43,749.85 is: 65,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,694.48 : 155,497.69 = 43,749.85 : x
  2. Step 2: Convert to fraction form
    103,694.48/155,497.69 = 43,749.85/x
  3. Step 3: Cross multiply
    103,694.48x = 155,497.69 × 43,749.85
  4. Step 4: Simplify right side
    103,694.48x = 6,803,000,612.85
  5. Step 5: Solve for x
    x = 6,803,000,612.85/103,694.48
  6. Step 6: Final answer
    x = 65,606.20

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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.