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Finding the Fourth Proportional to 188,610.86, 260,269.92 and 112,126.01

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Solution

The fourth proportional to 188,610.86, 260,269.92 and 112,126.01 is: 154,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,610.86 : 260,269.92 = 112,126.01 : x
  2. Step 2: Convert to fraction form
    188,610.86/260,269.92 = 112,126.01/x
  3. Step 3: Cross multiply
    188,610.86x = 260,269.92 × 112,126.01
  4. Step 4: Simplify right side
    188,610.86x = 29,183,026,351.27
  5. Step 5: Solve for x
    x = 29,183,026,351.27/188,610.86
  6. Step 6: Final answer
    x = 154,726.12

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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.