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Finding the Fourth Proportional to 197,611.44, 272,678.16 and 112,723.44

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Solution

The fourth proportional to 197,611.44, 272,678.16 and 112,723.44 is: 155,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,611.44 : 272,678.16 = 112,723.44 : x
  2. Step 2: Convert to fraction form
    197,611.44/272,678.16 = 112,723.44/x
  3. Step 3: Cross multiply
    197,611.44x = 272,678.16 × 112,723.44
  4. Step 4: Simplify right side
    197,611.44x = 30,737,220,208.07
  5. Step 5: Solve for x
    x = 30,737,220,208.07/197,611.44
  6. Step 6: Final answer
    x = 155,543.73

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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.