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Finding the Fourth Proportional to 188,648.22, 260,707.92 and 154,603.02

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Solution

The fourth proportional to 188,648.22, 260,707.92 and 154,603.02 is: 213,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,648.22 : 260,707.92 = 154,603.02 : x
  2. Step 2: Convert to fraction form
    188,648.22/260,707.92 = 154,603.02/x
  3. Step 3: Cross multiply
    188,648.22x = 260,707.92 × 154,603.02
  4. Step 4: Simplify right side
    188,648.22x = 40,306,231,769.92
  5. Step 5: Solve for x
    x = 40,306,231,769.92/188,648.22
  6. Step 6: Final answer
    x = 213,658.16

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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.