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Finding the Fourth Proportional to 166,379.78, 249,583.52 and 54,057.51

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Solution

The fourth proportional to 166,379.78, 249,583.52 and 54,057.51 is: 81,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,379.78 : 249,583.52 = 54,057.51 : x
  2. Step 2: Convert to fraction form
    166,379.78/249,583.52 = 54,057.51/x
  3. Step 3: Cross multiply
    166,379.78x = 249,583.52 × 54,057.51
  4. Step 4: Simplify right side
    166,379.78x = 13,491,864,436.22
  5. Step 5: Solve for x
    x = 13,491,864,436.22/166,379.78
  6. Step 6: Final answer
    x = 81,090.77

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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.