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Finding the Fourth Proportional to 166,963.78, 249,528.95 and 122,079.66

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Solution

The fourth proportional to 166,963.78, 249,528.95 and 122,079.66 is: 182,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,963.78 : 249,528.95 = 122,079.66 : x
  2. Step 2: Convert to fraction form
    166,963.78/249,528.95 = 122,079.66/x
  3. Step 3: Cross multiply
    166,963.78x = 249,528.95 × 122,079.66
  4. Step 4: Simplify right side
    166,963.78x = 30,462,408,974.52
  5. Step 5: Solve for x
    x = 30,462,408,974.52/166,963.78
  6. Step 6: Final answer
    x = 182,449.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.