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Finding the Fourth Proportional to 84,765.03, 116,976.20 and 47,039.28

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Solution

The fourth proportional to 84,765.03, 116,976.20 and 47,039.28 is: 64,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765.03 : 116,976.20 = 47,039.28 : x
  2. Step 2: Convert to fraction form
    84,765.03/116,976.20 = 47,039.28/x
  3. Step 3: Cross multiply
    84,765.03x = 116,976.20 × 47,039.28
  4. Step 4: Simplify right side
    84,765.03x = 5,502,476,225.14
  5. Step 5: Solve for x
    x = 5,502,476,225.14/84,765.03
  6. Step 6: Final answer
    x = 64,914.46

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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.