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Finding the Fourth Proportional to 111,263.18, 166,895.49 and 28,157.18

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Solution

The fourth proportional to 111,263.18, 166,895.49 and 28,157.18 is: 42,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,263.18 : 166,895.49 = 28,157.18 : x
  2. Step 2: Convert to fraction form
    111,263.18/166,895.49 = 28,157.18/x
  3. Step 3: Cross multiply
    111,263.18x = 166,895.49 × 28,157.18
  4. Step 4: Simplify right side
    111,263.18x = 4,699,306,353.12
  5. Step 5: Solve for x
    x = 4,699,306,353.12/111,263.18
  6. Step 6: Final answer
    x = 42,235.95

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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.