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Finding the Fourth Proportional to 161,331.84, 222,643.08 and 89,714.88

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Solution

The fourth proportional to 161,331.84, 222,643.08 and 89,714.88 is: 123,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,331.84 : 222,643.08 = 89,714.88 : x
  2. Step 2: Convert to fraction form
    161,331.84/222,643.08 = 89,714.88/x
  3. Step 3: Cross multiply
    161,331.84x = 222,643.08 × 89,714.88
  4. Step 4: Simplify right side
    161,331.84x = 19,974,397,205.03
  5. Step 5: Solve for x
    x = 19,974,397,205.03/161,331.84
  6. Step 6: Final answer
    x = 123,809.39

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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.