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Finding the Fourth Proportional to 571,153.92, 856,773.36 and 171,762.72

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Solution

The fourth proportional to 571,153.92, 856,773.36 and 171,762.72 is: 257,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,153.92 : 856,773.36 = 171,762.72 : x
  2. Step 2: Convert to fraction form
    571,153.92/856,773.36 = 171,762.72/x
  3. Step 3: Cross multiply
    571,153.92x = 856,773.36 × 171,762.72
  4. Step 4: Simplify right side
    571,153.92x = 147,161,722,737.14
  5. Step 5: Solve for x
    x = 147,161,722,737.14/571,153.92
  6. Step 6: Final answer
    x = 257,656.85

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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.