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Finding the Fourth Proportional to 94,145.25, 129,863.39 and 55,879.59

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Solution

The fourth proportional to 94,145.25, 129,863.39 and 55,879.59 is: 77,079.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,145.25 : 129,863.39 = 55,879.59 : x
  2. Step 2: Convert to fraction form
    94,145.25/129,863.39 = 55,879.59/x
  3. Step 3: Cross multiply
    94,145.25x = 129,863.39 × 55,879.59
  4. Step 4: Simplify right side
    94,145.25x = 7,256,712,479.59
  5. Step 5: Solve for x
    x = 7,256,712,479.59/94,145.25
  6. Step 6: Final answer
    x = 77,079.96

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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.