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Finding the Fourth Proportional to 111,601.20, 167,574.60 and 64,945.20

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Solution

The fourth proportional to 111,601.20, 167,574.60 and 64,945.20 is: 97,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,601.20 : 167,574.60 = 64,945.20 : x
  2. Step 2: Convert to fraction form
    111,601.20/167,574.60 = 64,945.20/x
  3. Step 3: Cross multiply
    111,601.20x = 167,574.60 × 64,945.20
  4. Step 4: Simplify right side
    111,601.20x = 10,883,165,911.92
  5. Step 5: Solve for x
    x = 10,883,165,911.92/111,601.20
  6. Step 6: Final answer
    x = 97,518.36

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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.