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Finding the Fourth Proportional to 197,117.80, 295,676.70 and 91,947.40

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Solution

The fourth proportional to 197,117.80, 295,676.70 and 91,947.40 is: 137,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,117.80 : 295,676.70 = 91,947.40 : x
  2. Step 2: Convert to fraction form
    197,117.80/295,676.70 = 91,947.40/x
  3. Step 3: Cross multiply
    197,117.80x = 295,676.70 × 91,947.40
  4. Step 4: Simplify right side
    197,117.80x = 27,186,703,805.58
  5. Step 5: Solve for x
    x = 27,186,703,805.58/197,117.80
  6. Step 6: Final answer
    x = 137,921.10

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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.