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Finding the Fourth Proportional to 104,805.60, 144,632.39 and 57,059.44

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Solution

The fourth proportional to 104,805.60, 144,632.39 and 57,059.44 is: 78,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,805.60 : 144,632.39 = 57,059.44 : x
  2. Step 2: Convert to fraction form
    104,805.60/144,632.39 = 57,059.44/x
  3. Step 3: Cross multiply
    104,805.60x = 144,632.39 × 57,059.44
  4. Step 4: Simplify right side
    104,805.60x = 8,252,642,532.38
  5. Step 5: Solve for x
    x = 8,252,642,532.38/104,805.60
  6. Step 6: Final answer
    x = 78,742.38

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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.