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Finding the Fourth Proportional to 118,468.98, 177,712.65 and 39,583.49

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Solution

The fourth proportional to 118,468.98, 177,712.65 and 39,583.49 is: 59,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,468.98 : 177,712.65 = 39,583.49 : x
  2. Step 2: Convert to fraction form
    118,468.98/177,712.65 = 39,583.49/x
  3. Step 3: Cross multiply
    118,468.98x = 177,712.65 × 39,583.49
  4. Step 4: Simplify right side
    118,468.98x = 7,034,486,015.59
  5. Step 5: Solve for x
    x = 7,034,486,015.59/118,468.98
  6. Step 6: Final answer
    x = 59,378.29

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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.