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Finding the Fourth Proportional to 188,652.20, 260,336.10 and 102,612.92

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Solution

The fourth proportional to 188,652.20, 260,336.10 and 102,612.92 is: 141,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,652.20 : 260,336.10 = 102,612.92 : x
  2. Step 2: Convert to fraction form
    188,652.20/260,336.10 = 102,612.92/x
  3. Step 3: Cross multiply
    188,652.20x = 260,336.10 × 102,612.92
  4. Step 4: Simplify right side
    188,652.20x = 26,713,847,402.41
  5. Step 5: Solve for x
    x = 26,713,847,402.41/188,652.20
  6. Step 6: Final answer
    x = 141,603.69

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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.