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Finding the Fourth Proportional to 227,288.32, 340,949.76 and 69,528.64

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Solution

The fourth proportional to 227,288.32, 340,949.76 and 69,528.64 is: 104,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,288.32 : 340,949.76 = 69,528.64 : x
  2. Step 2: Convert to fraction form
    227,288.32/340,949.76 = 69,528.64/x
  3. Step 3: Cross multiply
    227,288.32x = 340,949.76 × 69,528.64
  4. Step 4: Simplify right side
    227,288.32x = 23,705,773,121.13
  5. Step 5: Solve for x
    x = 23,705,773,121.13/227,288.32
  6. Step 6: Final answer
    x = 104,298.25

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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.