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Finding the Fourth Proportional to 571,229.90, 856,672.13 and 171,764.63

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Solution

The fourth proportional to 571,229.90, 856,672.13 and 171,764.63 is: 257,595.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,229.90 : 856,672.13 = 171,764.63 : x
  2. Step 2: Convert to fraction form
    571,229.90/856,672.13 = 171,764.63/x
  3. Step 3: Cross multiply
    571,229.90x = 856,672.13 × 171,764.63
  4. Step 4: Simplify right side
    571,229.90x = 147,145,971,440.76
  5. Step 5: Solve for x
    x = 147,145,971,440.76/571,229.90
  6. Step 6: Final answer
    x = 257,595.01

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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.