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Finding the Fourth Proportional to 82,809, 114,278.85 and 45,085.68

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Solution

The fourth proportional to 82,809, 114,278.85 and 45,085.68 is: 62,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,809 : 114,278.85 = 45,085.68 : x
  2. Step 2: Convert to fraction form
    82,809/114,278.85 = 45,085.68/x
  3. Step 3: Cross multiply
    82,809x = 114,278.85 × 45,085.68
  4. Step 4: Simplify right side
    82,809x = 5,152,339,661.87
  5. Step 5: Solve for x
    x = 5,152,339,661.87/82,809
  6. Step 6: Final answer
    x = 62,219.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.