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Finding the Fourth Proportional to 84,012.58, 115,937.37 and 46,286.50

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Solution

The fourth proportional to 84,012.58, 115,937.37 and 46,286.50 is: 63,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012.58 : 115,937.37 = 46,286.50 : x
  2. Step 2: Convert to fraction form
    84,012.58/115,937.37 = 46,286.50/x
  3. Step 3: Cross multiply
    84,012.58x = 115,937.37 × 46,286.50
  4. Step 4: Simplify right side
    84,012.58x = 5,366,335,076.51
  5. Step 5: Solve for x
    x = 5,366,335,076.51/84,012.58
  6. Step 6: Final answer
    x = 63,875.38

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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.