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Finding the Fourth Proportional to 197,873.62, 296,699.39 and 85,483.70

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Solution

The fourth proportional to 197,873.62, 296,699.39 and 85,483.70 is: 128,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,873.62 : 296,699.39 = 85,483.70 : x
  2. Step 2: Convert to fraction form
    197,873.62/296,699.39 = 85,483.70/x
  3. Step 3: Cross multiply
    197,873.62x = 296,699.39 × 85,483.70
  4. Step 4: Simplify right side
    197,873.62x = 25,362,961,644.94
  5. Step 5: Solve for x
    x = 25,362,961,644.94/197,873.62
  6. Step 6: Final answer
    x = 128,177.58

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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.