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Finding the Fourth Proportional to 84,705.77, 116,889.73 and 48,893.64

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Solution

The fourth proportional to 84,705.77, 116,889.73 and 48,893.64 is: 67,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,705.77 : 116,889.73 = 48,893.64 : x
  2. Step 2: Convert to fraction form
    84,705.77/116,889.73 = 48,893.64/x
  3. Step 3: Cross multiply
    84,705.77x = 116,889.73 × 48,893.64
  4. Step 4: Simplify right side
    84,705.77x = 5,715,164,133.85
  5. Step 5: Solve for x
    x = 5,715,164,133.85/84,705.77
  6. Step 6: Final answer
    x = 67,470.78

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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.