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Finding the Fourth Proportional to 75,866.44, 104,745 and 67,894.96

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Solution

The fourth proportional to 75,866.44, 104,745 and 67,894.96 is: 93,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,866.44 : 104,745 = 67,894.96 : x
  2. Step 2: Convert to fraction form
    75,866.44/104,745 = 67,894.96/x
  3. Step 3: Cross multiply
    75,866.44x = 104,745 × 67,894.96
  4. Step 4: Simplify right side
    75,866.44x = 7,111,657,585.20
  5. Step 5: Solve for x
    x = 7,111,657,585.20/75,866.44
  6. Step 6: Final answer
    x = 93,739.18

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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.