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Finding the Fourth Proportional to 166,572.80, 249,974.40 and 119,859.20

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Solution

The fourth proportional to 166,572.80, 249,974.40 and 119,859.20 is: 179,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,572.80 : 249,974.40 = 119,859.20 : x
  2. Step 2: Convert to fraction form
    166,572.80/249,974.40 = 119,859.20/x
  3. Step 3: Cross multiply
    166,572.80x = 249,974.40 × 119,859.20
  4. Step 4: Simplify right side
    166,572.80x = 29,961,731,604.48
  5. Step 5: Solve for x
    x = 29,961,731,604.48/166,572.80
  6. Step 6: Final answer
    x = 179,871.69

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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.