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Finding the Fourth Proportional to 236,840.40, 355,260.60 and 170,744.40

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Solution

The fourth proportional to 236,840.40, 355,260.60 and 170,744.40 is: 256,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,840.40 : 355,260.60 = 170,744.40 : x
  2. Step 2: Convert to fraction form
    236,840.40/355,260.60 = 170,744.40/x
  3. Step 3: Cross multiply
    236,840.40x = 355,260.60 × 170,744.40
  4. Step 4: Simplify right side
    236,840.40x = 60,658,757,990.64
  5. Step 5: Solve for x
    x = 60,658,757,990.64/236,840.40
  6. Step 6: Final answer
    x = 256,116.60

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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.