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Finding the Fourth Proportional to 114,557.80, 171,879.90 and 55,445.80

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Solution

The fourth proportional to 114,557.80, 171,879.90 and 55,445.80 is: 83,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,557.80 : 171,879.90 = 55,445.80 : x
  2. Step 2: Convert to fraction form
    114,557.80/171,879.90 = 55,445.80/x
  3. Step 3: Cross multiply
    114,557.80x = 171,879.90 × 55,445.80
  4. Step 4: Simplify right side
    114,557.80x = 9,530,018,559.42
  5. Step 5: Solve for x
    x = 9,530,018,559.42/114,557.80
  6. Step 6: Final answer
    x = 83,189.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.