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Finding the Fourth Proportional to 123,573.88, 170,519.34 and 75,829.24

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Solution

The fourth proportional to 123,573.88, 170,519.34 and 75,829.24 is: 104,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,573.88 : 170,519.34 = 75,829.24 : x
  2. Step 2: Convert to fraction form
    123,573.88/170,519.34 = 75,829.24/x
  3. Step 3: Cross multiply
    123,573.88x = 170,519.34 × 75,829.24
  4. Step 4: Simplify right side
    123,573.88x = 12,930,351,957.50
  5. Step 5: Solve for x
    x = 12,930,351,957.50/123,573.88
  6. Step 6: Final answer
    x = 104,636.61

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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.