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Finding the Fourth Proportional to 217,331.70, 325,997.55 and 146,472.90

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Solution

The fourth proportional to 217,331.70, 325,997.55 and 146,472.90 is: 219,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,331.70 : 325,997.55 = 146,472.90 : x
  2. Step 2: Convert to fraction form
    217,331.70/325,997.55 = 146,472.90/x
  3. Step 3: Cross multiply
    217,331.70x = 325,997.55 × 146,472.90
  4. Step 4: Simplify right side
    217,331.70x = 47,749,806,541.40
  5. Step 5: Solve for x
    x = 47,749,806,541.40/217,331.70
  6. Step 6: Final answer
    x = 219,709.35

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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.