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Finding the Fourth Proportional to 333,310.50, 499,965.75 and 83,992.50

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Solution

The fourth proportional to 333,310.50, 499,965.75 and 83,992.50 is: 125,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,310.50 : 499,965.75 = 83,992.50 : x
  2. Step 2: Convert to fraction form
    333,310.50/499,965.75 = 83,992.50/x
  3. Step 3: Cross multiply
    333,310.50x = 499,965.75 × 83,992.50
  4. Step 4: Simplify right side
    333,310.50x = 41,993,373,256.88
  5. Step 5: Solve for x
    x = 41,993,373,256.88/333,310.50
  6. Step 6: Final answer
    x = 125,988.75

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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.