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Finding the Fourth Proportional to 336,776.40, 505,234.80 and 112,206.60

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Solution

The fourth proportional to 336,776.40, 505,234.80 and 112,206.60 is: 168,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,776.40 : 505,234.80 = 112,206.60 : x
  2. Step 2: Convert to fraction form
    336,776.40/505,234.80 = 112,206.60/x
  3. Step 3: Cross multiply
    336,776.40x = 505,234.80 × 112,206.60
  4. Step 4: Simplify right side
    336,776.40x = 56,690,679,109.68
  5. Step 5: Solve for x
    x = 56,690,679,109.68/336,776.40
  6. Step 6: Final answer
    x = 168,333.29

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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.