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Finding the Fourth Proportional to 118,487.39, 177,573.87 and 51,854.96

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Solution

The fourth proportional to 118,487.39, 177,573.87 and 51,854.96 is: 77,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,487.39 : 177,573.87 = 51,854.96 : x
  2. Step 2: Convert to fraction form
    118,487.39/177,573.87 = 51,854.96/x
  3. Step 3: Cross multiply
    118,487.39x = 177,573.87 × 51,854.96
  4. Step 4: Simplify right side
    118,487.39x = 9,208,086,369.83
  5. Step 5: Solve for x
    x = 9,208,086,369.83/118,487.39
  6. Step 6: Final answer
    x = 77,713.64

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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.