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Finding the Fourth Proportional to 170,668.50, 235,611.07 and 124,676.50

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Solution

The fourth proportional to 170,668.50, 235,611.07 and 124,676.50 is: 172,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,668.50 : 235,611.07 = 124,676.50 : x
  2. Step 2: Convert to fraction form
    170,668.50/235,611.07 = 124,676.50/x
  3. Step 3: Cross multiply
    170,668.50x = 235,611.07 × 124,676.50
  4. Step 4: Simplify right side
    170,668.50x = 29,375,163,568.86
  5. Step 5: Solve for x
    x = 29,375,163,568.86/170,668.50
  6. Step 6: Final answer
    x = 172,118.25

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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.