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Finding the Fourth Proportional to 118,531.81, 177,797.89 and 48,411.12

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Solution

The fourth proportional to 118,531.81, 177,797.89 and 48,411.12 is: 72,616.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,531.81 : 177,797.89 = 48,411.12 : x
  2. Step 2: Convert to fraction form
    118,531.81/177,797.89 = 48,411.12/x
  3. Step 3: Cross multiply
    118,531.81x = 177,797.89 × 48,411.12
  4. Step 4: Simplify right side
    118,531.81x = 8,607,394,443.37
  5. Step 5: Solve for x
    x = 8,607,394,443.37/118,531.81
  6. Step 6: Final answer
    x = 72,616.75

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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.