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Finding the Fourth Proportional to 271,054.65, 406,601.95 and 71,373.66

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Solution

The fourth proportional to 271,054.65, 406,601.95 and 71,373.66 is: 107,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,054.65 : 406,601.95 = 71,373.66 : x
  2. Step 2: Convert to fraction form
    271,054.65/406,601.95 = 71,373.66/x
  3. Step 3: Cross multiply
    271,054.65x = 406,601.95 × 71,373.66
  4. Step 4: Simplify right side
    271,054.65x = 29,020,667,966.01
  5. Step 5: Solve for x
    x = 29,020,667,966.01/271,054.65
  6. Step 6: Final answer
    x = 107,065.74

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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.