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Finding the Fourth Proportional to 136,961.80, 192,023 and 136,961.80

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Solution

The fourth proportional to 136,961.80, 192,023 and 136,961.80 is: 192,023

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,961.80 : 192,023 = 136,961.80 : x
  2. Step 2: Convert to fraction form
    136,961.80/192,023 = 136,961.80/x
  3. Step 3: Cross multiply
    136,961.80x = 192,023 × 136,961.80
  4. Step 4: Simplify right side
    136,961.80x = 26,299,815,721.40
  5. Step 5: Solve for x
    x = 26,299,815,721.40/136,961.80
  6. Step 6: Final answer
    x = 192,023

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.