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Finding the Fourth Proportional to 213,472.88, 294,728.44 and 133,018.60

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Solution

The fourth proportional to 213,472.88, 294,728.44 and 133,018.60 is: 183,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,472.88 : 294,728.44 = 133,018.60 : x
  2. Step 2: Convert to fraction form
    213,472.88/294,728.44 = 133,018.60/x
  3. Step 3: Cross multiply
    213,472.88x = 294,728.44 × 133,018.60
  4. Step 4: Simplify right side
    213,472.88x = 39,204,364,468.98
  5. Step 5: Solve for x
    x = 39,204,364,468.98/213,472.88
  6. Step 6: Final answer
    x = 183,650.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.