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Finding the Fourth Proportional to 172,913.64, 238,620.34 and 96,432.82

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Solution

The fourth proportional to 172,913.64, 238,620.34 and 96,432.82 is: 133,077.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,913.64 : 238,620.34 = 96,432.82 : x
  2. Step 2: Convert to fraction form
    172,913.64/238,620.34 = 96,432.82/x
  3. Step 3: Cross multiply
    172,913.64x = 238,620.34 × 96,432.82
  4. Step 4: Simplify right side
    172,913.64x = 23,010,832,295.56
  5. Step 5: Solve for x
    x = 23,010,832,295.56/172,913.64
  6. Step 6: Final answer
    x = 133,077.02

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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.