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Finding the Fourth Proportional to 196,775.81, 295,184.79 and 54,621.68

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Solution

The fourth proportional to 196,775.81, 295,184.79 and 54,621.68 is: 81,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,775.81 : 295,184.79 = 54,621.68 : x
  2. Step 2: Convert to fraction form
    196,775.81/295,184.79 = 54,621.68/x
  3. Step 3: Cross multiply
    196,775.81x = 295,184.79 × 54,621.68
  4. Step 4: Simplify right side
    196,775.81x = 16,123,487,664.32
  5. Step 5: Solve for x
    x = 16,123,487,664.32/196,775.81
  6. Step 6: Final answer
    x = 81,938.36

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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.