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Finding the Fourth Proportional to 447,519.22, 671,300.94 and 127,718.22

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Solution

The fourth proportional to 447,519.22, 671,300.94 and 127,718.22 is: 191,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,519.22 : 671,300.94 = 127,718.22 : x
  2. Step 2: Convert to fraction form
    447,519.22/671,300.94 = 127,718.22/x
  3. Step 3: Cross multiply
    447,519.22x = 671,300.94 × 127,718.22
  4. Step 4: Simplify right side
    447,519.22x = 85,737,361,141.13
  5. Step 5: Solve for x
    x = 85,737,361,141.13/447,519.22
  6. Step 6: Final answer
    x = 191,583.64

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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.