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Finding the Fourth Proportional to 339,574.10, 468,615.03 and 212,323.46

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Solution

The fourth proportional to 339,574.10, 468,615.03 and 212,323.46 is: 293,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,574.10 : 468,615.03 = 212,323.46 : x
  2. Step 2: Convert to fraction form
    339,574.10/468,615.03 = 212,323.46/x
  3. Step 3: Cross multiply
    339,574.10x = 468,615.03 × 212,323.46
  4. Step 4: Simplify right side
    339,574.10x = 99,497,964,577.60
  5. Step 5: Solve for x
    x = 99,497,964,577.60/339,574.10
  6. Step 6: Final answer
    x = 293,008.11

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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.