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Finding the Fourth Proportional to 192,676.76, 289,009.72 and 52,436.60

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Solution

The fourth proportional to 192,676.76, 289,009.72 and 52,436.60 is: 78,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,676.76 : 289,009.72 = 52,436.60 : x
  2. Step 2: Convert to fraction form
    192,676.76/289,009.72 = 52,436.60/x
  3. Step 3: Cross multiply
    192,676.76x = 289,009.72 × 52,436.60
  4. Step 4: Simplify right side
    192,676.76x = 15,154,687,083.75
  5. Step 5: Solve for x
    x = 15,154,687,083.75/192,676.76
  6. Step 6: Final answer
    x = 78,653.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.