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Finding the Fourth Proportional to 118,228.52, 177,369.51 and 39,345.86

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Solution

The fourth proportional to 118,228.52, 177,369.51 and 39,345.86 is: 59,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,228.52 : 177,369.51 = 39,345.86 : x
  2. Step 2: Convert to fraction form
    118,228.52/177,369.51 = 39,345.86/x
  3. Step 3: Cross multiply
    118,228.52x = 177,369.51 × 39,345.86
  4. Step 4: Simplify right side
    118,228.52x = 6,978,755,908.73
  5. Step 5: Solve for x
    x = 6,978,755,908.73/118,228.52
  6. Step 6: Final answer
    x = 59,027.69

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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.