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Finding the Fourth Proportional to 111,715.10, 167,528.10 and 36,814.40

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Solution

The fourth proportional to 111,715.10, 167,528.10 and 36,814.40 is: 55,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,715.10 : 167,528.10 = 36,814.40 : x
  2. Step 2: Convert to fraction form
    111,715.10/167,528.10 = 36,814.40/x
  3. Step 3: Cross multiply
    111,715.10x = 167,528.10 × 36,814.40
  4. Step 4: Simplify right side
    111,715.10x = 6,167,446,484.64
  5. Step 5: Solve for x
    x = 6,167,446,484.64/111,715.10
  6. Step 6: Final answer
    x = 55,206.92

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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.