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Finding the Fourth Proportional to 226,953.90, 340,430.85 and 156,969.90

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Solution

The fourth proportional to 226,953.90, 340,430.85 and 156,969.90 is: 235,454.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,953.90 : 340,430.85 = 156,969.90 : x
  2. Step 2: Convert to fraction form
    226,953.90/340,430.85 = 156,969.90/x
  3. Step 3: Cross multiply
    226,953.90x = 340,430.85 × 156,969.90
  4. Step 4: Simplify right side
    226,953.90x = 53,437,396,481.42
  5. Step 5: Solve for x
    x = 53,437,396,481.42/226,953.90
  6. Step 6: Final answer
    x = 235,454.85

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1.5x scale

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.