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Finding the Fourth Proportional to 445,794.10, 668,772.15 and 146,191.30

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Solution

The fourth proportional to 445,794.10, 668,772.15 and 146,191.30 is: 219,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,794.10 : 668,772.15 = 146,191.30 : x
  2. Step 2: Convert to fraction form
    445,794.10/668,772.15 = 146,191.30/x
  3. Step 3: Cross multiply
    445,794.10x = 668,772.15 × 146,191.30
  4. Step 4: Simplify right side
    445,794.10x = 97,768,670,012.30
  5. Step 5: Solve for x
    x = 97,768,670,012.30/445,794.10
  6. Step 6: Final answer
    x = 219,313.51

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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.