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Finding the Fourth Proportional to 161,522.72, 222,901.14 and 89,901.08

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Solution

The fourth proportional to 161,522.72, 222,901.14 and 89,901.08 is: 124,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,522.72 : 222,901.14 = 89,901.08 : x
  2. Step 2: Convert to fraction form
    161,522.72/222,901.14 = 89,901.08/x
  3. Step 3: Cross multiply
    161,522.72x = 222,901.14 × 89,901.08
  4. Step 4: Simplify right side
    161,522.72x = 20,039,053,219.23
  5. Step 5: Solve for x
    x = 20,039,053,219.23/161,522.72
  6. Step 6: Final answer
    x = 124,063.37

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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.