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Finding the Fourth Proportional to 76,110.68, 105,074.96 and 45,903.68

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Solution

The fourth proportional to 76,110.68, 105,074.96 and 45,903.68 is: 63,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110.68 : 105,074.96 = 45,903.68 : x
  2. Step 2: Convert to fraction form
    76,110.68/105,074.96 = 45,903.68/x
  3. Step 3: Cross multiply
    76,110.68x = 105,074.96 × 45,903.68
  4. Step 4: Simplify right side
    76,110.68x = 4,823,327,339.85
  5. Step 5: Solve for x
    x = 4,823,327,339.85/76,110.68
  6. Step 6: Final answer
    x = 63,372.54

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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.