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Finding the Fourth Proportional to 161,377.87, 222,712.59 and 89,764.56

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Solution

The fourth proportional to 161,377.87, 222,712.59 and 89,764.56 is: 123,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,377.87 : 222,712.59 = 89,764.56 : x
  2. Step 2: Convert to fraction form
    161,377.87/222,712.59 = 89,764.56/x
  3. Step 3: Cross multiply
    161,377.87x = 222,712.59 × 89,764.56
  4. Step 4: Simplify right side
    161,377.87x = 19,991,697,647.81
  5. Step 5: Solve for x
    x = 19,991,697,647.81/161,377.87
  6. Step 6: Final answer
    x = 123,881.28

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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.