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Finding the Fourth Proportional to 608,716.18, 913,189.08 and 187,893.64

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Solution

The fourth proportional to 608,716.18, 913,189.08 and 187,893.64 is: 281,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,716.18 : 913,189.08 = 187,893.64 : x
  2. Step 2: Convert to fraction form
    608,716.18/913,189.08 = 187,893.64/x
  3. Step 3: Cross multiply
    608,716.18x = 913,189.08 × 187,893.64
  4. Step 4: Simplify right side
    608,716.18x = 171,582,420,249.45
  5. Step 5: Solve for x
    x = 171,582,420,249.45/608,716.18
  6. Step 6: Final answer
    x = 281,875.90

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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.