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Finding the Fourth Proportional to 73,221.22, 101,045.37 and 39,687.22

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Solution

The fourth proportional to 73,221.22, 101,045.37 and 39,687.22 is: 54,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,221.22 : 101,045.37 = 39,687.22 : x
  2. Step 2: Convert to fraction form
    73,221.22/101,045.37 = 39,687.22/x
  3. Step 3: Cross multiply
    73,221.22x = 101,045.37 × 39,687.22
  4. Step 4: Simplify right side
    73,221.22x = 4,010,209,829.17
  5. Step 5: Solve for x
    x = 4,010,209,829.17/73,221.22
  6. Step 6: Final answer
    x = 54,768.41

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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.