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Finding the Fourth Proportional to 213,860.94, 295,160.40 and 123,230.31

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Solution

The fourth proportional to 213,860.94, 295,160.40 and 123,230.31 is: 170,076.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,860.94 : 295,160.40 = 123,230.31 : x
  2. Step 2: Convert to fraction form
    213,860.94/295,160.40 = 123,230.31/x
  3. Step 3: Cross multiply
    213,860.94x = 295,160.40 × 123,230.31
  4. Step 4: Simplify right side
    213,860.94x = 36,372,707,591.72
  5. Step 5: Solve for x
    x = 36,372,707,591.72/213,860.94
  6. Step 6: Final answer
    x = 170,076.44

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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.