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Finding the Fourth Proportional to 76,635.54, 105,756.03 and 43,101.54

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Solution

The fourth proportional to 76,635.54, 105,756.03 and 43,101.54 is: 59,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,635.54 : 105,756.03 = 43,101.54 : x
  2. Step 2: Convert to fraction form
    76,635.54/105,756.03 = 43,101.54/x
  3. Step 3: Cross multiply
    76,635.54x = 105,756.03 × 43,101.54
  4. Step 4: Simplify right side
    76,635.54x = 4,558,247,757.29
  5. Step 5: Solve for x
    x = 4,558,247,757.29/76,635.54
  6. Step 6: Final answer
    x = 59,479.55

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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.