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Finding the Fourth Proportional to 197,124.40, 295,686.60 and 84,858.40

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Solution

The fourth proportional to 197,124.40, 295,686.60 and 84,858.40 is: 127,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,124.40 : 295,686.60 = 84,858.40 : x
  2. Step 2: Convert to fraction form
    197,124.40/295,686.60 = 84,858.40/x
  3. Step 3: Cross multiply
    197,124.40x = 295,686.60 × 84,858.40
  4. Step 4: Simplify right side
    197,124.40x = 25,091,491,777.44
  5. Step 5: Solve for x
    x = 25,091,491,777.44/197,124.40
  6. Step 6: Final answer
    x = 127,287.60

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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.