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Finding the Fourth Proportional to 336,339.64, 504,643.87 and 136,675.65

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Solution

The fourth proportional to 336,339.64, 504,643.87 and 136,675.65 is: 205,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,339.64 : 504,643.87 = 136,675.65 : x
  2. Step 2: Convert to fraction form
    336,339.64/504,643.87 = 136,675.65/x
  3. Step 3: Cross multiply
    336,339.64x = 504,643.87 × 136,675.65
  4. Step 4: Simplify right side
    336,339.64x = 68,972,531,014.02
  5. Step 5: Solve for x
    x = 68,972,531,014.02/336,339.64
  6. Step 6: Final answer
    x = 205,068.10

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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.