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Finding the Fourth Proportional to 188,463.83, 260,072.95 and 107,898.85

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Solution

The fourth proportional to 188,463.83, 260,072.95 and 107,898.85 is: 148,896.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,463.83 : 260,072.95 = 107,898.85 : x
  2. Step 2: Convert to fraction form
    188,463.83/260,072.95 = 107,898.85/x
  3. Step 3: Cross multiply
    188,463.83x = 260,072.95 × 107,898.85
  4. Step 4: Simplify right side
    188,463.83x = 28,061,570,381.25
  5. Step 5: Solve for x
    x = 28,061,570,381.25/188,463.83
  6. Step 6: Final answer
    x = 148,896.32

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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.