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Finding the Fourth Proportional to 192,016.64, 287,901.68 and 79,774.40

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Solution

The fourth proportional to 192,016.64, 287,901.68 and 79,774.40 is: 119,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,016.64 : 287,901.68 = 79,774.40 : x
  2. Step 2: Convert to fraction form
    192,016.64/287,901.68 = 79,774.40/x
  3. Step 3: Cross multiply
    192,016.64x = 287,901.68 × 79,774.40
  4. Step 4: Simplify right side
    192,016.64x = 22,967,183,780.99
  5. Step 5: Solve for x
    x = 22,967,183,780.99/192,016.64
  6. Step 6: Final answer
    x = 119,610.38

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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.