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Finding the Fourth Proportional to 385,559.46, 578,324.76 and 101,247.44

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Solution

The fourth proportional to 385,559.46, 578,324.76 and 101,247.44 is: 151,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,559.46 : 578,324.76 = 101,247.44 : x
  2. Step 2: Convert to fraction form
    385,559.46/578,324.76 = 101,247.44/x
  3. Step 3: Cross multiply
    385,559.46x = 578,324.76 × 101,247.44
  4. Step 4: Simplify right side
    385,559.46x = 58,553,898,546.99
  5. Step 5: Solve for x
    x = 58,553,898,546.99/385,559.46
  6. Step 6: Final answer
    x = 151,867.36

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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.