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Finding the Fourth Proportional to 336,940.81, 505,376.52 and 112,276.96

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Solution

The fourth proportional to 336,940.81, 505,376.52 and 112,276.96 is: 168,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,940.81 : 505,376.52 = 112,276.96 : x
  2. Step 2: Convert to fraction form
    336,940.81/505,376.52 = 112,276.96/x
  3. Step 3: Cross multiply
    336,940.81x = 505,376.52 × 112,276.96
  4. Step 4: Simplify right side
    336,940.81x = 56,742,139,320.98
  5. Step 5: Solve for x
    x = 56,742,139,320.98/336,940.81
  6. Step 6: Final answer
    x = 168,403.88

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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.