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Finding the Fourth Proportional to 111,690.16, 167,555.99 and 36,815.55

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Solution

The fourth proportional to 111,690.16, 167,555.99 and 36,815.55 is: 55,230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,690.16 : 167,555.99 = 36,815.55 : x
  2. Step 2: Convert to fraction form
    111,690.16/167,555.99 = 36,815.55/x
  3. Step 3: Cross multiply
    111,690.16x = 167,555.99 × 36,815.55
  4. Step 4: Simplify right side
    111,690.16x = 6,168,665,391.35
  5. Step 5: Solve for x
    x = 6,168,665,391.35/111,690.16
  6. Step 6: Final answer
    x = 55,230.16

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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.