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Finding the Fourth Proportional to 73,779.45, 101,824.79 and 45,093.21

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Solution

The fourth proportional to 73,779.45, 101,824.79 and 45,093.21 is: 62,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,779.45 : 101,824.79 = 45,093.21 : x
  2. Step 2: Convert to fraction form
    73,779.45/101,824.79 = 45,093.21/x
  3. Step 3: Cross multiply
    73,779.45x = 101,824.79 × 45,093.21
  4. Step 4: Simplify right side
    73,779.45x = 4,591,606,638.68
  5. Step 5: Solve for x
    x = 4,591,606,638.68/73,779.45
  6. Step 6: Final answer
    x = 62,234.22

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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.