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Finding the Fourth Proportional to 86,047.69, 129,104.63 and 41,671.03

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Solution

The fourth proportional to 86,047.69, 129,104.63 and 41,671.03 is: 62,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,047.69 : 129,104.63 = 41,671.03 : x
  2. Step 2: Convert to fraction form
    86,047.69/129,104.63 = 41,671.03/x
  3. Step 3: Cross multiply
    86,047.69x = 129,104.63 × 41,671.03
  4. Step 4: Simplify right side
    86,047.69x = 5,379,922,909.87
  5. Step 5: Solve for x
    x = 5,379,922,909.87/86,047.69
  6. Step 6: Final answer
    x = 62,522.57

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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.