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Finding the Fourth Proportional to 172,086.84, 237,492.54 and 100,451.52

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Solution

The fourth proportional to 172,086.84, 237,492.54 and 100,451.52 is: 138,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,086.84 : 237,492.54 = 100,451.52 : x
  2. Step 2: Convert to fraction form
    172,086.84/237,492.54 = 100,451.52/x
  3. Step 3: Cross multiply
    172,086.84x = 237,492.54 × 100,451.52
  4. Step 4: Simplify right side
    172,086.84x = 23,856,486,631.66
  5. Step 5: Solve for x
    x = 23,856,486,631.66/172,086.84
  6. Step 6: Final answer
    x = 138,630.51

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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.