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Finding the Fourth Proportional to 247,216.80, 370,922.40 and 97,431.60

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Solution

The fourth proportional to 247,216.80, 370,922.40 and 97,431.60 is: 146,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,216.80 : 370,922.40 = 97,431.60 : x
  2. Step 2: Convert to fraction form
    247,216.80/370,922.40 = 97,431.60/x
  3. Step 3: Cross multiply
    247,216.80x = 370,922.40 × 97,431.60
  4. Step 4: Simplify right side
    247,216.80x = 36,139,562,907.84
  5. Step 5: Solve for x
    x = 36,139,562,907.84/247,216.80
  6. Step 6: Final answer
    x = 146,185.71

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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.