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Finding the Fourth Proportional to 336,889.84, 505,165.72 and 112,171.12

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Solution

The fourth proportional to 336,889.84, 505,165.72 and 112,171.12 is: 168,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,889.84 : 505,165.72 = 112,171.12 : x
  2. Step 2: Convert to fraction form
    336,889.84/505,165.72 = 112,171.12/x
  3. Step 3: Cross multiply
    336,889.84x = 505,165.72 × 112,171.12
  4. Step 4: Simplify right side
    336,889.84x = 56,665,004,598.01
  5. Step 5: Solve for x
    x = 56,665,004,598.01/336,889.84
  6. Step 6: Final answer
    x = 168,200.40

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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.