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Finding the Fourth Proportional to 489,546.24, 734,178.24 and 134,571.84

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Solution

The fourth proportional to 489,546.24, 734,178.24 and 134,571.84 is: 201,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,546.24 : 734,178.24 = 134,571.84 : x
  2. Step 2: Convert to fraction form
    489,546.24/734,178.24 = 134,571.84/x
  3. Step 3: Cross multiply
    489,546.24x = 734,178.24 × 134,571.84
  4. Step 4: Simplify right side
    489,546.24x = 98,799,716,644.76
  5. Step 5: Solve for x
    x = 98,799,716,644.76/489,546.24
  6. Step 6: Final answer
    x = 201,818.97

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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.