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Finding the Fourth Proportional to 322,123.55, 444,402.99 and 186,132.42

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Solution

The fourth proportional to 322,123.55, 444,402.99 and 186,132.42 is: 256,789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,123.55 : 444,402.99 = 186,132.42 : x
  2. Step 2: Convert to fraction form
    322,123.55/444,402.99 = 186,132.42/x
  3. Step 3: Cross multiply
    322,123.55x = 444,402.99 × 186,132.42
  4. Step 4: Simplify right side
    322,123.55x = 82,717,803,983.94
  5. Step 5: Solve for x
    x = 82,717,803,983.94/322,123.55
  6. Step 6: Final answer
    x = 256,789.07

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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.