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Finding the Fourth Proportional to 321,560.21, 482,239.17 and 116,368.38

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Solution

The fourth proportional to 321,560.21, 482,239.17 and 116,368.38 is: 174,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,560.21 : 482,239.17 = 116,368.38 : x
  2. Step 2: Convert to fraction form
    321,560.21/482,239.17 = 116,368.38/x
  3. Step 3: Cross multiply
    321,560.21x = 482,239.17 × 116,368.38
  4. Step 4: Simplify right side
    321,560.21x = 56,117,390,985.44
  5. Step 5: Solve for x
    x = 56,117,390,985.44/321,560.21
  6. Step 6: Final answer
    x = 174,515.97

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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.