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Finding the Fourth Proportional to 109,944, 151,721.28 and 59,644.80

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Solution

The fourth proportional to 109,944, 151,721.28 and 59,644.80 is: 82,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,944 : 151,721.28 = 59,644.80 : x
  2. Step 2: Convert to fraction form
    109,944/151,721.28 = 59,644.80/x
  3. Step 3: Cross multiply
    109,944x = 151,721.28 × 59,644.80
  4. Step 4: Simplify right side
    109,944x = 9,049,385,401.34
  5. Step 5: Solve for x
    x = 9,049,385,401.34/109,944
  6. Step 6: Final answer
    x = 82,309.04

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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.