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Finding the Fourth Proportional to 111,381.87, 167,017.53 and 35,470.52

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Solution

The fourth proportional to 111,381.87, 167,017.53 and 35,470.52 is: 53,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,381.87 : 167,017.53 = 35,470.52 : x
  2. Step 2: Convert to fraction form
    111,381.87/167,017.53 = 35,470.52/x
  3. Step 3: Cross multiply
    111,381.87x = 167,017.53 × 35,470.52
  4. Step 4: Simplify right side
    111,381.87x = 5,924,197,803.13
  5. Step 5: Solve for x
    x = 5,924,197,803.13/111,381.87
  6. Step 6: Final answer
    x = 53,188.17

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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.