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Finding the Fourth Proportional to 161,571.90, 222,966.09 and 89,953.32

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Solution

The fourth proportional to 161,571.90, 222,966.09 and 89,953.32 is: 124,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,571.90 : 222,966.09 = 89,953.32 : x
  2. Step 2: Convert to fraction form
    161,571.90/222,966.09 = 89,953.32/x
  3. Step 3: Cross multiply
    161,571.90x = 222,966.09 × 89,953.32
  4. Step 4: Simplify right side
    161,571.90x = 20,056,540,042.92
  5. Step 5: Solve for x
    x = 20,056,540,042.92/161,571.90
  6. Step 6: Final answer
    x = 124,133.84

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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.