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Finding the Fourth Proportional to 170,697.86, 256,019.79 and 58,377.86

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Solution

The fourth proportional to 170,697.86, 256,019.79 and 58,377.86 is: 87,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,697.86 : 256,019.79 = 58,377.86 : x
  2. Step 2: Convert to fraction form
    170,697.86/256,019.79 = 58,377.86/x
  3. Step 3: Cross multiply
    170,697.86x = 256,019.79 × 58,377.86
  4. Step 4: Simplify right side
    170,697.86x = 14,945,887,457.85
  5. Step 5: Solve for x
    x = 14,945,887,457.85/170,697.86
  6. Step 6: Final answer
    x = 87,557.56

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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.