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Finding the Fourth Proportional to 166,488, 249,732.24 and 67,992

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Solution

The fourth proportional to 166,488, 249,732.24 and 67,992 is: 101,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,488 : 249,732.24 = 67,992 : x
  2. Step 2: Convert to fraction form
    166,488/249,732.24 = 67,992/x
  3. Step 3: Cross multiply
    166,488x = 249,732.24 × 67,992
  4. Step 4: Simplify right side
    166,488x = 16,979,794,462.08
  5. Step 5: Solve for x
    x = 16,979,794,462.08/166,488
  6. Step 6: Final answer
    x = 101,988.10

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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.