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Finding the Fourth Proportional to 169,903.80, 254,855.70 and 113,916.60

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Solution

The fourth proportional to 169,903.80, 254,855.70 and 113,916.60 is: 170,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,903.80 : 254,855.70 = 113,916.60 : x
  2. Step 2: Convert to fraction form
    169,903.80/254,855.70 = 113,916.60/x
  3. Step 3: Cross multiply
    169,903.80x = 254,855.70 × 113,916.60
  4. Step 4: Simplify right side
    169,903.80x = 29,032,294,834.62
  5. Step 5: Solve for x
    x = 29,032,294,834.62/169,903.80
  6. Step 6: Final answer
    x = 170,874.90

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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.