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Finding the Fourth Proportional to 250,079.46, 375,156.09 and 72,563.40

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Solution

The fourth proportional to 250,079.46, 375,156.09 and 72,563.40 is: 108,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,079.46 : 375,156.09 = 72,563.40 : x
  2. Step 2: Convert to fraction form
    250,079.46/375,156.09 = 72,563.40/x
  3. Step 3: Cross multiply
    250,079.46x = 375,156.09 × 72,563.40
  4. Step 4: Simplify right side
    250,079.46x = 27,222,601,421.11
  5. Step 5: Solve for x
    x = 27,222,601,421.11/250,079.46
  6. Step 6: Final answer
    x = 108,855.81

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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.