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Finding the Fourth Proportional to 197,390.40, 295,999.20 and 79,022.40

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Solution

The fourth proportional to 197,390.40, 295,999.20 and 79,022.40 is: 118,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,390.40 : 295,999.20 = 79,022.40 : x
  2. Step 2: Convert to fraction form
    197,390.40/295,999.20 = 79,022.40/x
  3. Step 3: Cross multiply
    197,390.40x = 295,999.20 × 79,022.40
  4. Step 4: Simplify right side
    197,390.40x = 23,390,567,182.08
  5. Step 5: Solve for x
    x = 23,390,567,182.08/197,390.40
  6. Step 6: Final answer
    x = 118,499.01

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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.