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Finding the Fourth Proportional to 111,802.55, 167,720.45 and 36,930.61

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Solution

The fourth proportional to 111,802.55, 167,720.45 and 36,930.61 is: 55,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,802.55 : 167,720.45 = 36,930.61 : x
  2. Step 2: Convert to fraction form
    111,802.55/167,720.45 = 36,930.61/x
  3. Step 3: Cross multiply
    111,802.55x = 167,720.45 × 36,930.61
  4. Step 4: Simplify right side
    111,802.55x = 6,194,017,924.02
  5. Step 5: Solve for x
    x = 6,194,017,924.02/111,802.55
  6. Step 6: Final answer
    x = 55,401.40

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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.