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Finding the Fourth Proportional to 104,609.52, 156,825.78 and 45,400.38

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Solution

The fourth proportional to 104,609.52, 156,825.78 and 45,400.38 is: 68,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,609.52 : 156,825.78 = 45,400.38 : x
  2. Step 2: Convert to fraction form
    104,609.52/156,825.78 = 45,400.38/x
  3. Step 3: Cross multiply
    104,609.52x = 156,825.78 × 45,400.38
  4. Step 4: Simplify right side
    104,609.52x = 7,119,950,005.80
  5. Step 5: Solve for x
    x = 7,119,950,005.80/104,609.52
  6. Step 6: Final answer
    x = 68,062.16

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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.