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Finding the Fourth Proportional to 111,951.40, 167,927.10 and 105,536.20

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Solution

The fourth proportional to 111,951.40, 167,927.10 and 105,536.20 is: 158,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,951.40 : 167,927.10 = 105,536.20 : x
  2. Step 2: Convert to fraction form
    111,951.40/167,927.10 = 105,536.20/x
  3. Step 3: Cross multiply
    111,951.40x = 167,927.10 × 105,536.20
  4. Step 4: Simplify right side
    111,951.40x = 17,722,388,011.02
  5. Step 5: Solve for x
    x = 17,722,388,011.02/111,951.40
  6. Step 6: Final answer
    x = 158,304.30

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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.