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Finding the Fourth Proportional to 165,260.60, 228,059.60 and 89,809.08

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Solution

The fourth proportional to 165,260.60, 228,059.60 and 89,809.08 is: 123,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,260.60 : 228,059.60 = 89,809.08 : x
  2. Step 2: Convert to fraction form
    165,260.60/228,059.60 = 89,809.08/x
  3. Step 3: Cross multiply
    165,260.60x = 228,059.60 × 89,809.08
  4. Step 4: Simplify right side
    165,260.60x = 20,481,822,861.17
  5. Step 5: Solve for x
    x = 20,481,822,861.17/165,260.60
  6. Step 6: Final answer
    x = 123,936.52

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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.