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Finding the Fourth Proportional to 213,384.87, 294,474.20 and 117,893.76

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Solution

The fourth proportional to 213,384.87, 294,474.20 and 117,893.76 is: 162,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,384.87 : 294,474.20 = 117,893.76 : x
  2. Step 2: Convert to fraction form
    213,384.87/294,474.20 = 117,893.76/x
  3. Step 3: Cross multiply
    213,384.87x = 294,474.20 × 117,893.76
  4. Step 4: Simplify right side
    213,384.87x = 34,716,670,660.99
  5. Step 5: Solve for x
    x = 34,716,670,660.99/213,384.87
  6. Step 6: Final answer
    x = 162,695.09

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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.