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Finding the Fourth Proportional to 240,513.76, 360,774.78 and 71,994.88

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Solution

The fourth proportional to 240,513.76, 360,774.78 and 71,994.88 is: 107,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,513.76 : 360,774.78 = 71,994.88 : x
  2. Step 2: Convert to fraction form
    240,513.76/360,774.78 = 71,994.88/x
  3. Step 3: Cross multiply
    240,513.76x = 360,774.78 × 71,994.88
  4. Step 4: Simplify right side
    240,513.76x = 25,973,936,993.13
  5. Step 5: Solve for x
    x = 25,973,936,993.13/240,513.76
  6. Step 6: Final answer
    x = 107,993.56

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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.