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Finding the Fourth Proportional to 273,880.40, 411,166.20 and 147,621.20

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Solution

The fourth proportional to 273,880.40, 411,166.20 and 147,621.20 is: 221,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,880.40 : 411,166.20 = 147,621.20 : x
  2. Step 2: Convert to fraction form
    273,880.40/411,166.20 = 147,621.20/x
  3. Step 3: Cross multiply
    273,880.40x = 411,166.20 × 147,621.20
  4. Step 4: Simplify right side
    273,880.40x = 60,696,847,843.44
  5. Step 5: Solve for x
    x = 60,696,847,843.44/273,880.40
  6. Step 6: Final answer
    x = 221,618.08

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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.