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Finding the Fourth Proportional to 118,088.62, 177,160.57 and 47,015.57

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Solution

The fourth proportional to 118,088.62, 177,160.57 and 47,015.57 is: 70,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,088.62 : 177,160.57 = 47,015.57 : x
  2. Step 2: Convert to fraction form
    118,088.62/177,160.57 = 47,015.57/x
  3. Step 3: Cross multiply
    118,088.62x = 177,160.57 × 47,015.57
  4. Step 4: Simplify right side
    118,088.62x = 8,329,305,505.44
  5. Step 5: Solve for x
    x = 8,329,305,505.44/118,088.62
  6. Step 6: Final answer
    x = 70,534.36

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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.