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Finding the Fourth Proportional to 111,504.40, 167,256.60 and 102,518.80

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Solution

The fourth proportional to 111,504.40, 167,256.60 and 102,518.80 is: 153,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,504.40 : 167,256.60 = 102,518.80 : x
  2. Step 2: Convert to fraction form
    111,504.40/167,256.60 = 102,518.80/x
  3. Step 3: Cross multiply
    111,504.40x = 167,256.60 × 102,518.80
  4. Step 4: Simplify right side
    111,504.40x = 17,146,945,924.08
  5. Step 5: Solve for x
    x = 17,146,945,924.08/111,504.40
  6. Step 6: Final answer
    x = 153,778.20

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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.