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Finding the Fourth Proportional to 161,113.44, 222,340.56 and 89,490

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Solution

The fourth proportional to 161,113.44, 222,340.56 and 89,490 is: 123,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,113.44 : 222,340.56 = 89,490 : x
  2. Step 2: Convert to fraction form
    161,113.44/222,340.56 = 89,490/x
  3. Step 3: Cross multiply
    161,113.44x = 222,340.56 × 89,490
  4. Step 4: Simplify right side
    161,113.44x = 19,897,256,714.40
  5. Step 5: Solve for x
    x = 19,897,256,714.40/161,113.44
  6. Step 6: Final answer
    x = 123,498.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.