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Finding the Fourth Proportional to 111,421.89, 167,116.43 and 36,549.94

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Solution

The fourth proportional to 111,421.89, 167,116.43 and 36,549.94 is: 54,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,421.89 : 167,116.43 = 36,549.94 : x
  2. Step 2: Convert to fraction form
    111,421.89/167,116.43 = 36,549.94/x
  3. Step 3: Cross multiply
    111,421.89x = 167,116.43 × 36,549.94
  4. Step 4: Simplify right side
    111,421.89x = 6,108,095,815.93
  5. Step 5: Solve for x
    x = 6,108,095,815.93/111,421.89
  6. Step 6: Final answer
    x = 54,819.53

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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.