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Finding the Fourth Proportional to 208,896.56, 288,246.84 and 119,455.28

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Solution

The fourth proportional to 208,896.56, 288,246.84 and 119,455.28 is: 164,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,896.56 : 288,246.84 = 119,455.28 : x
  2. Step 2: Convert to fraction form
    208,896.56/288,246.84 = 119,455.28/x
  3. Step 3: Cross multiply
    208,896.56x = 288,246.84 × 119,455.28
  4. Step 4: Simplify right side
    208,896.56x = 34,432,606,981.32
  5. Step 5: Solve for x
    x = 34,432,606,981.32/208,896.56
  6. Step 6: Final answer
    x = 164,830.90

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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.