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Finding the Fourth Proportional to 235,879.31, 353,821.70 and 58,387.86

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Solution

The fourth proportional to 235,879.31, 353,821.70 and 58,387.86 is: 87,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,879.31 : 353,821.70 = 58,387.86 : x
  2. Step 2: Convert to fraction form
    235,879.31/353,821.70 = 58,387.86/x
  3. Step 3: Cross multiply
    235,879.31x = 353,821.70 × 58,387.86
  4. Step 4: Simplify right side
    235,879.31x = 20,658,892,030.53
  5. Step 5: Solve for x
    x = 20,658,892,030.53/235,879.31
  6. Step 6: Final answer
    x = 87,582.47

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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.