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Finding the Fourth Proportional to 84,928.62, 117,203.31 and 47,202.06

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Solution

The fourth proportional to 84,928.62, 117,203.31 and 47,202.06 is: 65,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,928.62 : 117,203.31 = 47,202.06 : x
  2. Step 2: Convert to fraction form
    84,928.62/117,203.31 = 47,202.06/x
  3. Step 3: Cross multiply
    84,928.62x = 117,203.31 × 47,202.06
  4. Step 4: Simplify right side
    84,928.62x = 5,532,237,670.82
  5. Step 5: Solve for x
    x = 5,532,237,670.82/84,928.62
  6. Step 6: Final answer
    x = 65,139.85

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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.