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Finding the Fourth Proportional to 166,093.20, 249,139.80 and 156,907.80

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Solution

The fourth proportional to 166,093.20, 249,139.80 and 156,907.80 is: 235,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,093.20 : 249,139.80 = 156,907.80 : x
  2. Step 2: Convert to fraction form
    166,093.20/249,139.80 = 156,907.80/x
  3. Step 3: Cross multiply
    166,093.20x = 249,139.80 × 156,907.80
  4. Step 4: Simplify right side
    166,093.20x = 39,091,977,910.44
  5. Step 5: Solve for x
    x = 39,091,977,910.44/166,093.20
  6. Step 6: Final answer
    x = 235,361.70

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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.