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Finding the Fourth Proportional to 114,211.80, 171,458.10 and 72,091.80

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Solution

The fourth proportional to 114,211.80, 171,458.10 and 72,091.80 is: 108,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,211.80 : 171,458.10 = 72,091.80 : x
  2. Step 2: Convert to fraction form
    114,211.80/171,458.10 = 72,091.80/x
  3. Step 3: Cross multiply
    114,211.80x = 171,458.10 × 72,091.80
  4. Step 4: Simplify right side
    114,211.80x = 12,360,723,053.58
  5. Step 5: Solve for x
    x = 12,360,723,053.58/114,211.80
  6. Step 6: Final answer
    x = 108,226.32

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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.