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Finding the Fourth Proportional to 270,056.16, 405,073.80 and 67,651.92

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Solution

The fourth proportional to 270,056.16, 405,073.80 and 67,651.92 is: 101,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,056.16 : 405,073.80 = 67,651.92 : x
  2. Step 2: Convert to fraction form
    270,056.16/405,073.80 = 67,651.92/x
  3. Step 3: Cross multiply
    270,056.16x = 405,073.80 × 67,651.92
  4. Step 4: Simplify right side
    270,056.16x = 27,404,020,311.70
  5. Step 5: Solve for x
    x = 27,404,020,311.70/270,056.16
  6. Step 6: Final answer
    x = 101,475.26

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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.