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Finding the Fourth Proportional to 571,881.53, 857,828.46 and 172,525.77

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Solution

The fourth proportional to 571,881.53, 857,828.46 and 172,525.77 is: 258,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,881.53 : 857,828.46 = 172,525.77 : x
  2. Step 2: Convert to fraction form
    571,881.53/857,828.46 = 172,525.77/x
  3. Step 3: Cross multiply
    571,881.53x = 857,828.46 × 172,525.77
  4. Step 4: Simplify right side
    571,881.53x = 147,997,515,589.41
  5. Step 5: Solve for x
    x = 147,997,515,589.41/571,881.53
  6. Step 6: Final answer
    x = 258,790.51

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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.