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Finding the Fourth Proportional to 371,843.44, 513,142.44 and 210,729.16

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Solution

The fourth proportional to 371,843.44, 513,142.44 and 210,729.16 is: 290,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,843.44 : 513,142.44 = 210,729.16 : x
  2. Step 2: Convert to fraction form
    371,843.44/513,142.44 = 210,729.16/x
  3. Step 3: Cross multiply
    371,843.44x = 513,142.44 × 210,729.16
  4. Step 4: Simplify right side
    371,843.44x = 108,134,075,341.55
  5. Step 5: Solve for x
    x = 108,134,075,341.55/371,843.44
  6. Step 6: Final answer
    x = 290,805.39

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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.