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Finding the Fourth Proportional to 188,992.52, 260,800.08 and 104,107.76

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Solution

The fourth proportional to 188,992.52, 260,800.08 and 104,107.76 is: 143,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,992.52 : 260,800.08 = 104,107.76 : x
  2. Step 2: Convert to fraction form
    188,992.52/260,800.08 = 104,107.76/x
  3. Step 3: Cross multiply
    188,992.52x = 260,800.08 × 104,107.76
  4. Step 4: Simplify right side
    188,992.52x = 27,151,312,136.62
  5. Step 5: Solve for x
    x = 27,151,312,136.62/188,992.52
  6. Step 6: Final answer
    x = 143,663.42

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1.5x scale

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.