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Finding the Fourth Proportional to 81,893.64, 113,019.75 and 46,081.38

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Solution

The fourth proportional to 81,893.64, 113,019.75 and 46,081.38 is: 63,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,893.64 : 113,019.75 = 46,081.38 : x
  2. Step 2: Convert to fraction form
    81,893.64/113,019.75 = 46,081.38/x
  3. Step 3: Cross multiply
    81,893.64x = 113,019.75 × 46,081.38
  4. Step 4: Simplify right side
    81,893.64x = 5,208,106,047.26
  5. Step 5: Solve for x
    x = 5,208,106,047.26/81,893.64
  6. Step 6: Final answer
    x = 63,595.98

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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.