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Finding the Fourth Proportional to 368,126.18, 508,007.98 and 204,780.72

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Solution

The fourth proportional to 368,126.18, 508,007.98 and 204,780.72 is: 282,593.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,126.18 : 508,007.98 = 204,780.72 : x
  2. Step 2: Convert to fraction form
    368,126.18/508,007.98 = 204,780.72/x
  3. Step 3: Cross multiply
    368,126.18x = 508,007.98 × 204,780.72
  4. Step 4: Simplify right side
    368,126.18x = 104,030,239,910.15
  5. Step 5: Solve for x
    x = 104,030,239,910.15/368,126.18
  6. Step 6: Final answer
    x = 282,593.97

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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.