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Finding the Fourth Proportional to 111,622.40, 167,822.40 and 94,515.20

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Solution

The fourth proportional to 111,622.40, 167,822.40 and 94,515.20 is: 142,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,622.40 : 167,822.40 = 94,515.20 : x
  2. Step 2: Convert to fraction form
    111,622.40/167,822.40 = 94,515.20/x
  3. Step 3: Cross multiply
    111,622.40x = 167,822.40 × 94,515.20
  4. Step 4: Simplify right side
    111,622.40x = 15,861,767,700.48
  5. Step 5: Solve for x
    x = 15,861,767,700.48/111,622.40
  6. Step 6: Final answer
    x = 142,102.01

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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.