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Finding the Fourth Proportional to 168,937.70, 253,406.55 and 166,313.30

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Solution

The fourth proportional to 168,937.70, 253,406.55 and 166,313.30 is: 249,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,937.70 : 253,406.55 = 166,313.30 : x
  2. Step 2: Convert to fraction form
    168,937.70/253,406.55 = 166,313.30/x
  3. Step 3: Cross multiply
    168,937.70x = 253,406.55 × 166,313.30
  4. Step 4: Simplify right side
    168,937.70x = 42,144,879,572.12
  5. Step 5: Solve for x
    x = 42,144,879,572.12/168,937.70
  6. Step 6: Final answer
    x = 249,469.95

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1.5x scale

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.