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Finding the Fourth Proportional to 321,303.09, 482,086.97 and 141,295.98

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Solution

The fourth proportional to 321,303.09, 482,086.97 and 141,295.98 is: 212,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,303.09 : 482,086.97 = 141,295.98 : x
  2. Step 2: Convert to fraction form
    321,303.09/482,086.97 = 141,295.98/x
  3. Step 3: Cross multiply
    321,303.09x = 482,086.97 × 141,295.98
  4. Step 4: Simplify right side
    321,303.09x = 68,116,950,871.38
  5. Step 5: Solve for x
    x = 68,116,950,871.38/321,303.09
  6. Step 6: Final answer
    x = 212,002.17

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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.