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Finding the Fourth Proportional to 84,793.60, 117,009.31 and 47,064.88

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Solution

The fourth proportional to 84,793.60, 117,009.31 and 47,064.88 is: 64,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,793.60 : 117,009.31 = 47,064.88 : x
  2. Step 2: Convert to fraction form
    84,793.60/117,009.31 = 47,064.88/x
  3. Step 3: Cross multiply
    84,793.60x = 117,009.31 × 47,064.88
  4. Step 4: Simplify right side
    84,793.60x = 5,507,028,431.32
  5. Step 5: Solve for x
    x = 5,507,028,431.32/84,793.60
  6. Step 6: Final answer
    x = 64,946.28

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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.