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Finding the Fourth Proportional to 271,948.40, 407,922.60 and 231,707.60

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Solution

The fourth proportional to 271,948.40, 407,922.60 and 231,707.60 is: 347,561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,948.40 : 407,922.60 = 231,707.60 : x
  2. Step 2: Convert to fraction form
    271,948.40/407,922.60 = 231,707.60/x
  3. Step 3: Cross multiply
    271,948.40x = 407,922.60 × 231,707.60
  4. Step 4: Simplify right side
    271,948.40x = 94,518,766,631.76
  5. Step 5: Solve for x
    x = 94,518,766,631.76/271,948.40
  6. Step 6: Final answer
    x = 347,561.40

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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.