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Finding the Fourth Proportional to 226,939.40, 340,409.10 and 156,955.40

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Solution

The fourth proportional to 226,939.40, 340,409.10 and 156,955.40 is: 235,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,939.40 : 340,409.10 = 156,955.40 : x
  2. Step 2: Convert to fraction form
    226,939.40/340,409.10 = 156,955.40/x
  3. Step 3: Cross multiply
    226,939.40x = 340,409.10 × 156,955.40
  4. Step 4: Simplify right side
    226,939.40x = 53,429,046,454.14
  5. Step 5: Solve for x
    x = 53,429,046,454.14/226,939.40
  6. Step 6: Final answer
    x = 235,433.10

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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.