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Finding the Fourth Proportional to 572,521.90, 858,917.72 and 173,165.98

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Solution

The fourth proportional to 572,521.90, 858,917.72 and 173,165.98 is: 259,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,521.90 : 858,917.72 = 173,165.98 : x
  2. Step 2: Convert to fraction form
    572,521.90/858,917.72 = 173,165.98/x
  3. Step 3: Cross multiply
    572,521.90x = 858,917.72 × 173,165.98
  4. Step 4: Simplify right side
    572,521.90x = 148,735,328,723.17
  5. Step 5: Solve for x
    x = 148,735,328,723.17/572,521.90
  6. Step 6: Final answer
    x = 259,789.76

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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.