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Finding the Fourth Proportional to 172,078.16, 237,442.20 and 96,612.08

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Solution

The fourth proportional to 172,078.16, 237,442.20 and 96,612.08 is: 133,310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,078.16 : 237,442.20 = 96,612.08 : x
  2. Step 2: Convert to fraction form
    172,078.16/237,442.20 = 96,612.08/x
  3. Step 3: Cross multiply
    172,078.16x = 237,442.20 × 96,612.08
  4. Step 4: Simplify right side
    172,078.16x = 22,939,784,821.78
  5. Step 5: Solve for x
    x = 22,939,784,821.78/172,078.16
  6. Step 6: Final answer
    x = 133,310.26

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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.