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Finding the Fourth Proportional to 197,161.80, 295,580.70 and 84,928.20

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Solution

The fourth proportional to 197,161.80, 295,580.70 and 84,928.20 is: 127,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,161.80 : 295,580.70 = 84,928.20 : x
  2. Step 2: Convert to fraction form
    197,161.80/295,580.70 = 84,928.20/x
  3. Step 3: Cross multiply
    197,161.80x = 295,580.70 × 84,928.20
  4. Step 4: Simplify right side
    197,161.80x = 25,103,136,805.74
  5. Step 5: Solve for x
    x = 25,103,136,805.74/197,161.80
  6. Step 6: Final answer
    x = 127,322.52

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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.