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Finding the Fourth Proportional to 627,766.65, 941,652.72 and 154,450.67

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Solution

The fourth proportional to 627,766.65, 941,652.72 and 154,450.67 is: 231,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,766.65 : 941,652.72 = 154,450.67 : x
  2. Step 2: Convert to fraction form
    627,766.65/941,652.72 = 154,450.67/x
  3. Step 3: Cross multiply
    627,766.65x = 941,652.72 × 154,450.67
  4. Step 4: Simplify right side
    627,766.65x = 145,438,888,803.06
  5. Step 5: Solve for x
    x = 145,438,888,803.06/627,766.65
  6. Step 6: Final answer
    x = 231,676.67

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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.