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Finding the Fourth Proportional to 605,150.91, 907,824.78 and 178,729.83

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Solution

The fourth proportional to 605,150.91, 907,824.78 and 178,729.83 is: 268,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,150.91 : 907,824.78 = 178,729.83 : x
  2. Step 2: Convert to fraction form
    605,150.91/907,824.78 = 178,729.83/x
  3. Step 3: Cross multiply
    605,150.91x = 907,824.78 × 178,729.83
  4. Step 4: Simplify right side
    605,150.91x = 162,255,368,599.19
  5. Step 5: Solve for x
    x = 162,255,368,599.19/605,150.91
  6. Step 6: Final answer
    x = 268,123.81

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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.