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Finding the Fourth Proportional to 80,879.51, 111,614.16 and 46,908.13

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Solution

The fourth proportional to 80,879.51, 111,614.16 and 46,908.13 is: 64,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,879.51 : 111,614.16 = 46,908.13 : x
  2. Step 2: Convert to fraction form
    80,879.51/111,614.16 = 46,908.13/x
  3. Step 3: Cross multiply
    80,879.51x = 111,614.16 × 46,908.13
  4. Step 4: Simplify right side
    80,879.51x = 5,235,610,734.51
  5. Step 5: Solve for x
    x = 5,235,610,734.51/80,879.51
  6. Step 6: Final answer
    x = 64,733.47

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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.