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Finding the Fourth Proportional to 286,470.66, 395,469.76 and 179,075.29

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Solution

The fourth proportional to 286,470.66, 395,469.76 and 179,075.29 is: 247,211.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,470.66 : 395,469.76 = 179,075.29 : x
  2. Step 2: Convert to fraction form
    286,470.66/395,469.76 = 179,075.29/x
  3. Step 3: Cross multiply
    286,470.66x = 395,469.76 × 179,075.29
  4. Step 4: Simplify right side
    286,470.66x = 70,818,861,958.23
  5. Step 5: Solve for x
    x = 70,818,861,958.23/286,470.66
  6. Step 6: Final answer
    x = 247,211.57

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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.