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Finding the Fourth Proportional to 250,379.68, 375,631.08 and 72,888.24

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Solution

The fourth proportional to 250,379.68, 375,631.08 and 72,888.24 is: 109,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,379.68 : 375,631.08 = 72,888.24 : x
  2. Step 2: Convert to fraction form
    250,379.68/375,631.08 = 72,888.24/x
  3. Step 3: Cross multiply
    250,379.68x = 375,631.08 × 72,888.24
  4. Step 4: Simplify right side
    250,379.68x = 27,379,088,310.50
  5. Step 5: Solve for x
    x = 27,379,088,310.50/250,379.68
  6. Step 6: Final answer
    x = 109,350.28

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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.