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Finding the Fourth Proportional to 352,920.44, 529,379.40 and 153,214.76

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Solution

The fourth proportional to 352,920.44, 529,379.40 and 153,214.76 is: 229,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,920.44 : 529,379.40 = 153,214.76 : x
  2. Step 2: Convert to fraction form
    352,920.44/529,379.40 = 153,214.76/x
  3. Step 3: Cross multiply
    352,920.44x = 529,379.40 × 153,214.76
  4. Step 4: Simplify right side
    352,920.44x = 81,108,737,719.94
  5. Step 5: Solve for x
    x = 81,108,737,719.94/352,920.44
  6. Step 6: Final answer
    x = 229,821.59

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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.