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Finding the Fourth Proportional to 271,962.73, 407,882.60 and 103,422.99

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Solution

The fourth proportional to 271,962.73, 407,882.60 and 103,422.99 is: 155,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,962.73 : 407,882.60 = 103,422.99 : x
  2. Step 2: Convert to fraction form
    271,962.73/407,882.60 = 103,422.99/x
  3. Step 3: Cross multiply
    271,962.73x = 407,882.60 × 103,422.99
  4. Step 4: Simplify right side
    271,962.73x = 42,184,437,543.86
  5. Step 5: Solve for x
    x = 42,184,437,543.86/271,962.73
  6. Step 6: Final answer
    x = 155,111.10

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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.