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Finding the Fourth Proportional to 128,326.62, 192,486.69 and 34,829.94

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Solution

The fourth proportional to 128,326.62, 192,486.69 and 34,829.94 is: 52,244.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,326.62 : 192,486.69 = 34,829.94 : x
  2. Step 2: Convert to fraction form
    128,326.62/192,486.69 = 34,829.94/x
  3. Step 3: Cross multiply
    128,326.62x = 192,486.69 × 34,829.94
  4. Step 4: Simplify right side
    128,326.62x = 6,704,299,863.50
  5. Step 5: Solve for x
    x = 6,704,299,863.50/128,326.62
  6. Step 6: Final answer
    x = 52,244.03

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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.