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Finding the Fourth Proportional to 368,234.86, 508,159.29 and 207,089.86

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Solution

The fourth proportional to 368,234.86, 508,159.29 and 207,089.86 is: 285,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,234.86 : 508,159.29 = 207,089.86 : x
  2. Step 2: Convert to fraction form
    368,234.86/508,159.29 = 207,089.86/x
  3. Step 3: Cross multiply
    368,234.86x = 508,159.29 × 207,089.86
  4. Step 4: Simplify right side
    368,234.86x = 105,234,636,223.80
  5. Step 5: Solve for x
    x = 105,234,636,223.80/368,234.86
  6. Step 6: Final answer
    x = 285,781.30

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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.