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Finding the Fourth Proportional to 68,653.63, 103,152.98 and 43,704.82

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Solution

The fourth proportional to 68,653.63, 103,152.98 and 43,704.82 is: 65,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,653.63 : 103,152.98 = 43,704.82 : x
  2. Step 2: Convert to fraction form
    68,653.63/103,152.98 = 43,704.82/x
  3. Step 3: Cross multiply
    68,653.63x = 103,152.98 × 43,704.82
  4. Step 4: Simplify right side
    68,653.63x = 4,508,282,423.36
  5. Step 5: Solve for x
    x = 4,508,282,423.36/68,653.63
  6. Step 6: Final answer
    x = 65,667.07

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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.