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Finding the Fourth Proportional to 144,284.59, 199,111.77 and 80,622.54

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Solution

The fourth proportional to 144,284.59, 199,111.77 and 80,622.54 is: 111,258.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,284.59 : 199,111.77 = 80,622.54 : x
  2. Step 2: Convert to fraction form
    144,284.59/199,111.77 = 80,622.54/x
  3. Step 3: Cross multiply
    144,284.59x = 199,111.77 × 80,622.54
  4. Step 4: Simplify right side
    144,284.59x = 16,052,896,641.30
  5. Step 5: Solve for x
    x = 16,052,896,641.30/144,284.59
  6. Step 6: Final answer
    x = 111,258.57

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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.