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Finding the Fourth Proportional to 197,129.60, 295,694.40 and 157,763.60

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Solution

The fourth proportional to 197,129.60, 295,694.40 and 157,763.60 is: 236,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,129.60 : 295,694.40 = 157,763.60 : x
  2. Step 2: Convert to fraction form
    197,129.60/295,694.40 = 157,763.60/x
  3. Step 3: Cross multiply
    197,129.60x = 295,694.40 × 157,763.60
  4. Step 4: Simplify right side
    197,129.60x = 46,649,813,043.84
  5. Step 5: Solve for x
    x = 46,649,813,043.84/197,129.60
  6. Step 6: Final answer
    x = 236,645.40

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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.