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Finding the Fourth Proportional to 571,241.76, 856,690.11 and 171,776.49

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Solution

The fourth proportional to 571,241.76, 856,690.11 and 171,776.49 is: 257,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,241.76 : 856,690.11 = 171,776.49 : x
  2. Step 2: Convert to fraction form
    571,241.76/856,690.11 = 171,776.49/x
  3. Step 3: Cross multiply
    571,241.76x = 856,690.11 × 171,776.49
  4. Step 4: Simplify right side
    571,241.76x = 147,159,219,254.63
  5. Step 5: Solve for x
    x = 147,159,219,254.63/571,241.76
  6. Step 6: Final answer
    x = 257,612.85

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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.