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Finding the Fourth Proportional to 572,076.63, 858,253.68 and 172,693.56

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Solution

The fourth proportional to 572,076.63, 858,253.68 and 172,693.56 is: 259,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,076.63 : 858,253.68 = 172,693.56 : x
  2. Step 2: Convert to fraction form
    572,076.63/858,253.68 = 172,693.56/x
  3. Step 3: Cross multiply
    572,076.63x = 858,253.68 × 172,693.56
  4. Step 4: Simplify right side
    572,076.63x = 148,214,883,382.30
  5. Step 5: Solve for x
    x = 148,214,883,382.30/572,076.63
  6. Step 6: Final answer
    x = 259,082.22

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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.