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Finding the Fourth Proportional to 168,070.72, 231,929.04 and 92,604.64

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Solution

The fourth proportional to 168,070.72, 231,929.04 and 92,604.64 is: 127,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,070.72 : 231,929.04 = 92,604.64 : x
  2. Step 2: Convert to fraction form
    168,070.72/231,929.04 = 92,604.64/x
  3. Step 3: Cross multiply
    168,070.72x = 231,929.04 × 92,604.64
  4. Step 4: Simplify right side
    168,070.72x = 21,477,705,254.75
  5. Step 5: Solve for x
    x = 21,477,705,254.75/168,070.72
  6. Step 6: Final answer
    x = 127,789.69

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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.