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Finding the Fourth Proportional to 572,080.73, 858,259.94 and 172,697.67

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Solution

The fourth proportional to 572,080.73, 858,259.94 and 172,697.67 is: 259,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,080.73 : 858,259.94 = 172,697.67 : x
  2. Step 2: Convert to fraction form
    572,080.73/858,259.94 = 172,697.67/x
  3. Step 3: Cross multiply
    572,080.73x = 858,259.94 × 172,697.67
  4. Step 4: Simplify right side
    572,080.73x = 148,219,491,028.85
  5. Step 5: Solve for x
    x = 148,219,491,028.85/572,080.73
  6. Step 6: Final answer
    x = 259,088.42

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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.