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Finding the Fourth Proportional to 111,119.66, 166,689.61 and 36,220.58

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Solution

The fourth proportional to 111,119.66, 166,689.61 and 36,220.58 is: 54,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,119.66 : 166,689.61 = 36,220.58 : x
  2. Step 2: Convert to fraction form
    111,119.66/166,689.61 = 36,220.58/x
  3. Step 3: Cross multiply
    111,119.66x = 166,689.61 × 36,220.58
  4. Step 4: Simplify right side
    111,119.66x = 6,037,593,430.17
  5. Step 5: Solve for x
    x = 6,037,593,430.17/111,119.66
  6. Step 6: Final answer
    x = 54,334.16

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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.