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Finding the Fourth Proportional to 161,411.46, 222,756.04 and 89,792.88

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Solution

The fourth proportional to 161,411.46, 222,756.04 and 89,792.88 is: 123,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,411.46 : 222,756.04 = 89,792.88 : x
  2. Step 2: Convert to fraction form
    161,411.46/222,756.04 = 89,792.88/x
  3. Step 3: Cross multiply
    161,411.46x = 222,756.04 × 89,792.88
  4. Step 4: Simplify right side
    161,411.46x = 20,001,906,369.00
  5. Step 5: Solve for x
    x = 20,001,906,369.00/161,411.46
  6. Step 6: Final answer
    x = 123,918.75

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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.