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Finding the Fourth Proportional to 172,111.40, 237,512.97 and 95,642.95

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Solution

The fourth proportional to 172,111.40, 237,512.97 and 95,642.95 is: 131,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,111.40 : 237,512.97 = 95,642.95 : x
  2. Step 2: Convert to fraction form
    172,111.40/237,512.97 = 95,642.95/x
  3. Step 3: Cross multiply
    172,111.40x = 237,512.97 × 95,642.95
  4. Step 4: Simplify right side
    172,111.40x = 22,716,440,520.28
  5. Step 5: Solve for x
    x = 22,716,440,520.28/172,111.40
  6. Step 6: Final answer
    x = 131,986.84

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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.