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Finding the Fourth Proportional to 235,355.76, 324,783 and 134,734.32

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Solution

The fourth proportional to 235,355.76, 324,783 and 134,734.32 is: 185,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,355.76 : 324,783 = 134,734.32 : x
  2. Step 2: Convert to fraction form
    235,355.76/324,783 = 134,734.32/x
  3. Step 3: Cross multiply
    235,355.76x = 324,783 × 134,734.32
  4. Step 4: Simplify right side
    235,355.76x = 43,759,416,652.56
  5. Step 5: Solve for x
    x = 43,759,416,652.56/235,355.76
  6. Step 6: Final answer
    x = 185,928.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.