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Finding the Fourth Proportional to 84,796.74, 117,019.95 and 47,078.34

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Solution

The fourth proportional to 84,796.74, 117,019.95 and 47,078.34 is: 64,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,796.74 : 117,019.95 = 47,078.34 : x
  2. Step 2: Convert to fraction form
    84,796.74/117,019.95 = 47,078.34/x
  3. Step 3: Cross multiply
    84,796.74x = 117,019.95 × 47,078.34
  4. Step 4: Simplify right side
    84,796.74x = 5,509,104,992.88
  5. Step 5: Solve for x
    x = 5,509,104,992.88/84,796.74
  6. Step 6: Final answer
    x = 64,968.36

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1.5x scale

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.