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Finding the Fourth Proportional to 368,230.86, 508,153.77 and 207,085.86

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Solution

The fourth proportional to 368,230.86, 508,153.77 and 207,085.86 is: 285,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,230.86 : 508,153.77 = 207,085.86 : x
  2. Step 2: Convert to fraction form
    368,230.86/508,153.77 = 207,085.86/x
  3. Step 3: Cross multiply
    368,230.86x = 508,153.77 × 207,085.86
  4. Step 4: Simplify right side
    368,230.86x = 105,231,460,472.69
  5. Step 5: Solve for x
    x = 105,231,460,472.69/368,230.86
  6. Step 6: Final answer
    x = 285,775.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.