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Finding the Fourth Proportional to 84,640.50, 116,803.91 and 46,914.75

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Solution

The fourth proportional to 84,640.50, 116,803.91 and 46,914.75 is: 64,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,640.50 : 116,803.91 = 46,914.75 : x
  2. Step 2: Convert to fraction form
    84,640.50/116,803.91 = 46,914.75/x
  3. Step 3: Cross multiply
    84,640.50x = 116,803.91 × 46,914.75
  4. Step 4: Simplify right side
    84,640.50x = 5,479,826,002.10
  5. Step 5: Solve for x
    x = 5,479,826,002.10/84,640.50
  6. Step 6: Final answer
    x = 64,742.36

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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.