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Finding the Fourth Proportional to 84,730.72, 116,928.44 and 47,005

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Solution

The fourth proportional to 84,730.72, 116,928.44 and 47,005 is: 64,866.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,730.72 : 116,928.44 = 47,005 : x
  2. Step 2: Convert to fraction form
    84,730.72/116,928.44 = 47,005/x
  3. Step 3: Cross multiply
    84,730.72x = 116,928.44 × 47,005
  4. Step 4: Simplify right side
    84,730.72x = 5,496,221,322.20
  5. Step 5: Solve for x
    x = 5,496,221,322.20/84,730.72
  6. Step 6: Final answer
    x = 64,866.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.