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Finding the Fourth Proportional to 199,603.20, 299,404.80 and 195,666.60

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Solution

The fourth proportional to 199,603.20, 299,404.80 and 195,666.60 is: 293,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,603.20 : 299,404.80 = 195,666.60 : x
  2. Step 2: Convert to fraction form
    199,603.20/299,404.80 = 195,666.60/x
  3. Step 3: Cross multiply
    199,603.20x = 299,404.80 × 195,666.60
  4. Step 4: Simplify right side
    199,603.20x = 58,583,519,239.68
  5. Step 5: Solve for x
    x = 58,583,519,239.68/199,603.20
  6. Step 6: Final answer
    x = 293,499.90

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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.