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Finding the Fourth Proportional to 271,897.62, 407,846.58 and 103,379.01

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Solution

The fourth proportional to 271,897.62, 407,846.58 and 103,379.01 is: 155,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,897.62 : 407,846.58 = 103,379.01 : x
  2. Step 2: Convert to fraction form
    271,897.62/407,846.58 = 103,379.01/x
  3. Step 3: Cross multiply
    271,897.62x = 407,846.58 × 103,379.01
  4. Step 4: Simplify right side
    271,897.62x = 42,162,775,672.29
  5. Step 5: Solve for x
    x = 42,162,775,672.29/271,897.62
  6. Step 6: Final answer
    x = 155,068.57

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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.