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Finding the Fourth Proportional to 139,774.28, 209,474.58 and 50,944.28

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Solution

The fourth proportional to 139,774.28, 209,474.58 and 50,944.28 is: 76,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,774.28 : 209,474.58 = 50,944.28 : x
  2. Step 2: Convert to fraction form
    139,774.28/209,474.58 = 50,944.28/x
  3. Step 3: Cross multiply
    139,774.28x = 209,474.58 × 50,944.28
  4. Step 4: Simplify right side
    139,774.28x = 10,671,531,656.40
  5. Step 5: Solve for x
    x = 10,671,531,656.40/139,774.28
  6. Step 6: Final answer
    x = 76,348.32

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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.