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Finding the Fourth Proportional to 262,404.40, 393,023.40 and 203,047.60

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Solution

The fourth proportional to 262,404.40, 393,023.40 and 203,047.60 is: 304,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,404.40 : 393,023.40 = 203,047.60 : x
  2. Step 2: Convert to fraction form
    262,404.40/393,023.40 = 203,047.60/x
  3. Step 3: Cross multiply
    262,404.40x = 393,023.40 × 203,047.60
  4. Step 4: Simplify right side
    262,404.40x = 79,802,458,113.84
  5. Step 5: Solve for x
    x = 79,802,458,113.84/262,404.40
  6. Step 6: Final answer
    x = 304,120.12

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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.