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Finding the Fourth Proportional to 80,348.60, 110,879.16 and 46,357.16

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Solution

The fourth proportional to 80,348.60, 110,879.16 and 46,357.16 is: 63,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,348.60 : 110,879.16 = 46,357.16 : x
  2. Step 2: Convert to fraction form
    80,348.60/110,879.16 = 46,357.16/x
  3. Step 3: Cross multiply
    80,348.60x = 110,879.16 × 46,357.16
  4. Step 4: Simplify right side
    80,348.60x = 5,140,042,960.79
  5. Step 5: Solve for x
    x = 5,140,042,960.79/80,348.60
  6. Step 6: Final answer
    x = 63,971.78

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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.