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Finding the Fourth Proportional to 197,487.81, 296,397.60 and 85,252.80

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Solution

The fourth proportional to 197,487.81, 296,397.60 and 85,252.80 is: 127,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,487.81 : 296,397.60 = 85,252.80 : x
  2. Step 2: Convert to fraction form
    197,487.81/296,397.60 = 85,252.80/x
  3. Step 3: Cross multiply
    197,487.81x = 296,397.60 × 85,252.80
  4. Step 4: Simplify right side
    197,487.81x = 25,268,725,313.28
  5. Step 5: Solve for x
    x = 25,268,725,313.28/197,487.81
  6. Step 6: Final answer
    x = 127,950.81

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1.5x scale

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.