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Finding the Fourth Proportional to 571,227.15, 856,668.02 and 171,761.88

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Solution

The fourth proportional to 571,227.15, 856,668.02 and 171,761.88 is: 257,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,227.15 : 856,668.02 = 171,761.88 : x
  2. Step 2: Convert to fraction form
    571,227.15/856,668.02 = 171,761.88/x
  3. Step 3: Cross multiply
    571,227.15x = 856,668.02 × 171,761.88
  4. Step 4: Simplify right side
    571,227.15x = 147,142,908,792.27
  5. Step 5: Solve for x
    x = 147,142,908,792.27/571,227.15
  6. Step 6: Final answer
    x = 257,590.89

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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.