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Finding the Fourth Proportional to 178,879, 246,857.32 and 98,314.20

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Solution

The fourth proportional to 178,879, 246,857.32 and 98,314.20 is: 135,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,879 : 246,857.32 = 98,314.20 : x
  2. Step 2: Convert to fraction form
    178,879/246,857.32 = 98,314.20/x
  3. Step 3: Cross multiply
    178,879x = 246,857.32 × 98,314.20
  4. Step 4: Simplify right side
    178,879x = 24,269,579,929.94
  5. Step 5: Solve for x
    x = 24,269,579,929.94/178,879
  6. Step 6: Final answer
    x = 135,675.96

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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.