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Finding the Fourth Proportional to 111,666.30, 167,499.45 and 109,722.30

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Solution

The fourth proportional to 111,666.30, 167,499.45 and 109,722.30 is: 164,583.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,666.30 : 167,499.45 = 109,722.30 : x
  2. Step 2: Convert to fraction form
    111,666.30/167,499.45 = 109,722.30/x
  3. Step 3: Cross multiply
    111,666.30x = 167,499.45 × 109,722.30
  4. Step 4: Simplify right side
    111,666.30x = 18,378,424,902.74
  5. Step 5: Solve for x
    x = 18,378,424,902.74/111,666.30
  6. Step 6: Final answer
    x = 164,583.45

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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.