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Finding the Fourth Proportional to 118,375.98, 177,573.21 and 39,490.12

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Solution

The fourth proportional to 118,375.98, 177,573.21 and 39,490.12 is: 59,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,375.98 : 177,573.21 = 39,490.12 : x
  2. Step 2: Convert to fraction form
    118,375.98/177,573.21 = 39,490.12/x
  3. Step 3: Cross multiply
    118,375.98x = 177,573.21 × 39,490.12
  4. Step 4: Simplify right side
    118,375.98x = 7,012,387,371.69
  5. Step 5: Solve for x
    x = 7,012,387,371.69/118,375.98
  6. Step 6: Final answer
    x = 59,238.26

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1.5x scale

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.