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Finding the Fourth Proportional to 171,825.36, 257,653.72 and 70,605.08

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Solution

The fourth proportional to 171,825.36, 257,653.72 and 70,605.08 is: 105,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,825.36 : 257,653.72 = 70,605.08 : x
  2. Step 2: Convert to fraction form
    171,825.36/257,653.72 = 70,605.08/x
  3. Step 3: Cross multiply
    171,825.36x = 257,653.72 × 70,605.08
  4. Step 4: Simplify right side
    171,825.36x = 18,191,660,048.12
  5. Step 5: Solve for x
    x = 18,191,660,048.12/171,825.36
  6. Step 6: Final answer
    x = 105,872.96

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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.