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Finding the Fourth Proportional to 339,574.16, 468,615.12 and 212,323.52

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Solution

The fourth proportional to 339,574.16, 468,615.12 and 212,323.52 is: 293,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,574.16 : 468,615.12 = 212,323.52 : x
  2. Step 2: Convert to fraction form
    339,574.16/468,615.12 = 212,323.52/x
  3. Step 3: Cross multiply
    339,574.16x = 468,615.12 × 212,323.52
  4. Step 4: Simplify right side
    339,574.16x = 99,498,011,803.62
  5. Step 5: Solve for x
    x = 99,498,011,803.62/339,574.16
  6. Step 6: Final answer
    x = 293,008.20

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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.