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Finding the Fourth Proportional to 168,068.90, 252,150.20 and 73,307.54

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Solution

The fourth proportional to 168,068.90, 252,150.20 and 73,307.54 is: 109,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,068.90 : 252,150.20 = 73,307.54 : x
  2. Step 2: Convert to fraction form
    168,068.90/252,150.20 = 73,307.54/x
  3. Step 3: Cross multiply
    168,068.90x = 252,150.20 × 73,307.54
  4. Step 4: Simplify right side
    168,068.90x = 18,484,510,872.51
  5. Step 5: Solve for x
    x = 18,484,510,872.51/168,068.90
  6. Step 6: Final answer
    x = 109,981.74

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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.