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Finding the Fourth Proportional to 165,887.44, 228,924.12 and 90,435.92

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Solution

The fourth proportional to 165,887.44, 228,924.12 and 90,435.92 is: 124,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,887.44 : 228,924.12 = 90,435.92 : x
  2. Step 2: Convert to fraction form
    165,887.44/228,924.12 = 90,435.92/x
  3. Step 3: Cross multiply
    165,887.44x = 228,924.12 × 90,435.92
  4. Step 4: Simplify right side
    165,887.44x = 20,702,963,402.39
  5. Step 5: Solve for x
    x = 20,702,963,402.39/165,887.44
  6. Step 6: Final answer
    x = 124,801.27

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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.