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Finding the Fourth Proportional to 80,311.25, 110,831.13 and 46,779.41

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Solution

The fourth proportional to 80,311.25, 110,831.13 and 46,779.41 is: 64,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,311.25 : 110,831.13 = 46,779.41 : x
  2. Step 2: Convert to fraction form
    80,311.25/110,831.13 = 46,779.41/x
  3. Step 3: Cross multiply
    80,311.25x = 110,831.13 × 46,779.41
  4. Step 4: Simplify right side
    80,311.25x = 5,184,614,871.03
  5. Step 5: Solve for x
    x = 5,184,614,871.03/80,311.25
  6. Step 6: Final answer
    x = 64,556.52

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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.