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Finding the Fourth Proportional to 336,887.84, 505,162.72 and 112,169.12

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Solution

The fourth proportional to 336,887.84, 505,162.72 and 112,169.12 is: 168,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,887.84 : 505,162.72 = 112,169.12 : x
  2. Step 2: Convert to fraction form
    336,887.84/505,162.72 = 112,169.12/x
  3. Step 3: Cross multiply
    336,887.84x = 505,162.72 × 112,169.12
  4. Step 4: Simplify right side
    336,887.84x = 56,663,657,759.21
  5. Step 5: Solve for x
    x = 56,663,657,759.21/336,887.84
  6. Step 6: Final answer
    x = 168,197.40

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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.