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Finding the Fourth Proportional to 372,432.06, 558,651.33 and 91,951.74

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Solution

The fourth proportional to 372,432.06, 558,651.33 and 91,951.74 is: 137,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,432.06 : 558,651.33 = 91,951.74 : x
  2. Step 2: Convert to fraction form
    372,432.06/558,651.33 = 91,951.74/x
  3. Step 3: Cross multiply
    372,432.06x = 558,651.33 × 91,951.74
  4. Step 4: Simplify right side
    372,432.06x = 51,368,961,846.81
  5. Step 5: Solve for x
    x = 51,368,961,846.81/372,432.06
  6. Step 6: Final answer
    x = 137,928.41

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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.