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Finding the Fourth Proportional to 372,180.88, 558,273.40 and 91,696.08

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Solution

The fourth proportional to 372,180.88, 558,273.40 and 91,696.08 is: 137,544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,180.88 : 558,273.40 = 91,696.08 : x
  2. Step 2: Convert to fraction form
    372,180.88/558,273.40 = 91,696.08/x
  3. Step 3: Cross multiply
    372,180.88x = 558,273.40 × 91,696.08
  4. Step 4: Simplify right side
    372,180.88x = 51,191,482,348.27
  5. Step 5: Solve for x
    x = 51,191,482,348.27/372,180.88
  6. Step 6: Final answer
    x = 137,544.63

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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.