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Finding the Fourth Proportional to 73,755.50, 101,779.54 and 40,221.50

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Solution

The fourth proportional to 73,755.50, 101,779.54 and 40,221.50 is: 55,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,755.50 : 101,779.54 = 40,221.50 : x
  2. Step 2: Convert to fraction form
    73,755.50/101,779.54 = 40,221.50/x
  3. Step 3: Cross multiply
    73,755.50x = 101,779.54 × 40,221.50
  4. Step 4: Simplify right side
    73,755.50x = 4,093,725,158.66
  5. Step 5: Solve for x
    x = 4,093,725,158.66/73,755.50
  6. Step 6: Final answer
    x = 55,504.00

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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.