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Finding the Fourth Proportional to 262,364.40, 393,546.60 and 157,388.40

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Solution

The fourth proportional to 262,364.40, 393,546.60 and 157,388.40 is: 236,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,364.40 : 393,546.60 = 157,388.40 : x
  2. Step 2: Convert to fraction form
    262,364.40/393,546.60 = 157,388.40/x
  3. Step 3: Cross multiply
    262,364.40x = 393,546.60 × 157,388.40
  4. Step 4: Simplify right side
    262,364.40x = 61,939,669,699.44
  5. Step 5: Solve for x
    x = 61,939,669,699.44/262,364.40
  6. Step 6: Final answer
    x = 236,082.60

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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.