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Finding the Fourth Proportional to 165,523, 228,422.84 and 90,072.04

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Solution

The fourth proportional to 165,523, 228,422.84 and 90,072.04 is: 124,300.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,523 : 228,422.84 = 90,072.04 : x
  2. Step 2: Convert to fraction form
    165,523/228,422.84 = 90,072.04/x
  3. Step 3: Cross multiply
    165,523x = 228,422.84 × 90,072.04
  4. Step 4: Simplify right side
    165,523x = 20,574,511,181.39
  5. Step 5: Solve for x
    x = 20,574,511,181.39/165,523
  6. Step 6: Final answer
    x = 124,300.01

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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.