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Finding the Fourth Proportional to 193,403.60, 290,105.40 and 122,544.80

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Solution

The fourth proportional to 193,403.60, 290,105.40 and 122,544.80 is: 183,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,403.60 : 290,105.40 = 122,544.80 : x
  2. Step 2: Convert to fraction form
    193,403.60/290,105.40 = 122,544.80/x
  3. Step 3: Cross multiply
    193,403.60x = 290,105.40 × 122,544.80
  4. Step 4: Simplify right side
    193,403.60x = 35,550,908,221.92
  5. Step 5: Solve for x
    x = 35,550,908,221.92/193,403.60
  6. Step 6: Final answer
    x = 183,817.20

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1.5x scale

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.