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Finding the Fourth Proportional to 166,101.40, 249,111.60 and 47,760.40

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Solution

The fourth proportional to 166,101.40, 249,111.60 and 47,760.40 is: 71,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,101.40 : 249,111.60 = 47,760.40 : x
  2. Step 2: Convert to fraction form
    166,101.40/249,111.60 = 47,760.40/x
  3. Step 3: Cross multiply
    166,101.40x = 249,111.60 × 47,760.40
  4. Step 4: Simplify right side
    166,101.40x = 11,897,669,660.64
  5. Step 5: Solve for x
    x = 11,897,669,660.64/166,101.40
  6. Step 6: Final answer
    x = 71,628.95

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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.