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Finding the Fourth Proportional to 250,474.91, 375,729.68 and 100,715.22

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Solution

The fourth proportional to 250,474.91, 375,729.68 and 100,715.22 is: 151,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,474.91 : 375,729.68 = 100,715.22 : x
  2. Step 2: Convert to fraction form
    250,474.91/375,729.68 = 100,715.22/x
  3. Step 3: Cross multiply
    250,474.91x = 375,729.68 × 100,715.22
  4. Step 4: Simplify right side
    250,474.91x = 37,841,697,633.52
  5. Step 5: Solve for x
    x = 37,841,697,633.52/250,474.91
  6. Step 6: Final answer
    x = 151,079.80

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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.