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Finding the Fourth Proportional to 197,076.56, 295,644.04 and 72,407.84

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Solution

The fourth proportional to 197,076.56, 295,644.04 and 72,407.84 is: 108,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,076.56 : 295,644.04 = 72,407.84 : x
  2. Step 2: Convert to fraction form
    197,076.56/295,644.04 = 72,407.84/x
  3. Step 3: Cross multiply
    197,076.56x = 295,644.04 × 72,407.84
  4. Step 4: Simplify right side
    197,076.56x = 21,406,946,345.27
  5. Step 5: Solve for x
    x = 21,406,946,345.27/197,076.56
  6. Step 6: Final answer
    x = 108,622.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.