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Finding the Fourth Proportional to 84,690.58, 116,579.67 and 73,200.26

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Solution

The fourth proportional to 84,690.58, 116,579.67 and 73,200.26 is: 100,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,690.58 : 116,579.67 = 73,200.26 : x
  2. Step 2: Convert to fraction form
    84,690.58/116,579.67 = 73,200.26/x
  3. Step 3: Cross multiply
    84,690.58x = 116,579.67 × 73,200.26
  4. Step 4: Simplify right side
    84,690.58x = 8,533,661,571.82
  5. Step 5: Solve for x
    x = 8,533,661,571.82/84,690.58
  6. Step 6: Final answer
    x = 100,762.82

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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.