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Finding the Fourth Proportional to 82,643.65, 114,047.79 and 46,840.43

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Solution

The fourth proportional to 82,643.65, 114,047.79 and 46,840.43 is: 64,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,643.65 : 114,047.79 = 46,840.43 : x
  2. Step 2: Convert to fraction form
    82,643.65/114,047.79 = 46,840.43/x
  3. Step 3: Cross multiply
    82,643.65x = 114,047.79 × 46,840.43
  4. Step 4: Simplify right side
    82,643.65x = 5,342,047,524.15
  5. Step 5: Solve for x
    x = 5,342,047,524.15/82,643.65
  6. Step 6: Final answer
    x = 64,639.54

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Why These Related Problems?

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