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Finding the Fourth Proportional to 168,612.12, 232,689.42 and 93,165.48

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Solution

The fourth proportional to 168,612.12, 232,689.42 and 93,165.48 is: 128,570.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,612.12 : 232,689.42 = 93,165.48 : x
  2. Step 2: Convert to fraction form
    168,612.12/232,689.42 = 93,165.48/x
  3. Step 3: Cross multiply
    168,612.12x = 232,689.42 × 93,165.48
  4. Step 4: Simplify right side
    168,612.12x = 21,678,621,505.22
  5. Step 5: Solve for x
    x = 21,678,621,505.22/168,612.12
  6. Step 6: Final answer
    x = 128,570.96

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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.