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Finding the Fourth Proportional to 171,955.80, 257,933.70 and 115,968.60

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Solution

The fourth proportional to 171,955.80, 257,933.70 and 115,968.60 is: 173,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,955.80 : 257,933.70 = 115,968.60 : x
  2. Step 2: Convert to fraction form
    171,955.80/257,933.70 = 115,968.60/x
  3. Step 3: Cross multiply
    171,955.80x = 257,933.70 × 115,968.60
  4. Step 4: Simplify right side
    171,955.80x = 29,912,210,081.82
  5. Step 5: Solve for x
    x = 29,912,210,081.82/171,955.80
  6. Step 6: Final answer
    x = 173,952.90

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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.