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Finding the Fourth Proportional to 161,603.70, 223,010.94 and 89,983.73

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Solution

The fourth proportional to 161,603.70, 223,010.94 and 89,983.73 is: 124,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,603.70 : 223,010.94 = 89,983.73 : x
  2. Step 2: Convert to fraction form
    161,603.70/223,010.94 = 89,983.73/x
  3. Step 3: Cross multiply
    161,603.70x = 223,010.94 × 89,983.73
  4. Step 4: Simplify right side
    161,603.70x = 20,067,356,212.01
  5. Step 5: Solve for x
    x = 20,067,356,212.01/161,603.70
  6. Step 6: Final answer
    x = 124,176.34

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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.