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Finding the Fourth Proportional to 236,333, 354,499.50 and 70,121

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Solution

The fourth proportional to 236,333, 354,499.50 and 70,121 is: 105,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,333 : 354,499.50 = 70,121 : x
  2. Step 2: Convert to fraction form
    236,333/354,499.50 = 70,121/x
  3. Step 3: Cross multiply
    236,333x = 354,499.50 × 70,121
  4. Step 4: Simplify right side
    236,333x = 24,857,859,439.50
  5. Step 5: Solve for x
    x = 24,857,859,439.50/236,333
  6. Step 6: Final answer
    x = 105,181.50

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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.