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Finding the Fourth Proportional to 447,804.93, 671,795.98 and 127,959.69

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Solution

The fourth proportional to 447,804.93, 671,795.98 and 127,959.69 is: 191,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,804.93 : 671,795.98 = 127,959.69 : x
  2. Step 2: Convert to fraction form
    447,804.93/671,795.98 = 127,959.69/x
  3. Step 3: Cross multiply
    447,804.93x = 671,795.98 × 127,959.69
  4. Step 4: Simplify right side
    447,804.93x = 85,962,805,344.05
  5. Step 5: Solve for x
    x = 85,962,805,344.05/447,804.93
  6. Step 6: Final answer
    x = 191,964.85

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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.