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Finding the Fourth Proportional to 315,858.39, 473,836.77 and 189,468.93

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Solution

The fourth proportional to 315,858.39, 473,836.77 and 189,468.93 is: 284,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,858.39 : 473,836.77 = 189,468.93 : x
  2. Step 2: Convert to fraction form
    315,858.39/473,836.77 = 189,468.93/x
  3. Step 3: Cross multiply
    315,858.39x = 473,836.77 × 189,468.93
  4. Step 4: Simplify right side
    315,858.39x = 89,777,345,806.56
  5. Step 5: Solve for x
    x = 89,777,345,806.56/315,858.39
  6. Step 6: Final answer
    x = 284,232.90

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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.