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Finding the Fourth Proportional to 197,091.84, 295,754.40 and 72,520.32

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Solution

The fourth proportional to 197,091.84, 295,754.40 and 72,520.32 is: 108,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,091.84 : 295,754.40 = 72,520.32 : x
  2. Step 2: Convert to fraction form
    197,091.84/295,754.40 = 72,520.32/x
  3. Step 3: Cross multiply
    197,091.84x = 295,754.40 × 72,520.32
  4. Step 4: Simplify right side
    197,091.84x = 21,448,203,729.41
  5. Step 5: Solve for x
    x = 21,448,203,729.41/197,091.84
  6. Step 6: Final answer
    x = 108,823.40

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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.