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Finding the Fourth Proportional to 193,595.76, 290,404.56 and 68,936.76

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Solution

The fourth proportional to 193,595.76, 290,404.56 and 68,936.76 is: 103,409.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,595.76 : 290,404.56 = 68,936.76 : x
  2. Step 2: Convert to fraction form
    193,595.76/290,404.56 = 68,936.76/x
  3. Step 3: Cross multiply
    193,595.76x = 290,404.56 × 68,936.76
  4. Step 4: Simplify right side
    193,595.76x = 20,019,549,455.63
  5. Step 5: Solve for x
    x = 20,019,549,455.63/193,595.76
  6. Step 6: Final answer
    x = 103,409.03

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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.