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Finding the Fourth Proportional to 199,394.60, 275,221.46 and 113,399.93

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Solution

The fourth proportional to 199,394.60, 275,221.46 and 113,399.93 is: 156,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,394.60 : 275,221.46 = 113,399.93 : x
  2. Step 2: Convert to fraction form
    199,394.60/275,221.46 = 113,399.93/x
  3. Step 3: Cross multiply
    199,394.60x = 275,221.46 × 113,399.93
  4. Step 4: Simplify right side
    199,394.60x = 31,210,095,270.05
  5. Step 5: Solve for x
    x = 31,210,095,270.05/199,394.60
  6. Step 6: Final answer
    x = 156,524.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.