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Finding the Fourth Proportional to 104,824.68, 144,661.68 and 57,078.84

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Solution

The fourth proportional to 104,824.68, 144,661.68 and 57,078.84 is: 78,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,824.68 : 144,661.68 = 57,078.84 : x
  2. Step 2: Convert to fraction form
    104,824.68/144,661.68 = 57,078.84/x
  3. Step 3: Cross multiply
    104,824.68x = 144,661.68 × 57,078.84
  4. Step 4: Simplify right side
    104,824.68x = 8,257,120,886.85
  5. Step 5: Solve for x
    x = 8,257,120,886.85/104,824.68
  6. Step 6: Final answer
    x = 78,770.77

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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.