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Finding the Fourth Proportional to 168,616.86, 232,671.36 and 100,621.23

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Solution

The fourth proportional to 168,616.86, 232,671.36 and 100,621.23 is: 138,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,616.86 : 232,671.36 = 100,621.23 : x
  2. Step 2: Convert to fraction form
    168,616.86/232,671.36 = 100,621.23/x
  3. Step 3: Cross multiply
    168,616.86x = 232,671.36 × 100,621.23
  4. Step 4: Simplify right side
    168,616.86x = 23,411,678,428.97
  5. Step 5: Solve for x
    x = 23,411,678,428.97/168,616.86
  6. Step 6: Final answer
    x = 138,845.42

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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.