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Finding the Fourth Proportional to 170,071.62, 255,107.44 and 45,412.62

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Solution

The fourth proportional to 170,071.62, 255,107.44 and 45,412.62 is: 68,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,071.62 : 255,107.44 = 45,412.62 : x
  2. Step 2: Convert to fraction form
    170,071.62/255,107.44 = 45,412.62/x
  3. Step 3: Cross multiply
    170,071.62x = 255,107.44 × 45,412.62
  4. Step 4: Simplify right side
    170,071.62x = 11,585,097,231.89
  5. Step 5: Solve for x
    x = 11,585,097,231.89/170,071.62
  6. Step 6: Final answer
    x = 68,118.93

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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.