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Finding the Fourth Proportional to 194,307.20, 291,403.20 and 75,910.40

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Solution

The fourth proportional to 194,307.20, 291,403.20 and 75,910.40 is: 113,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,307.20 : 291,403.20 = 75,910.40 : x
  2. Step 2: Convert to fraction form
    194,307.20/291,403.20 = 75,910.40/x
  3. Step 3: Cross multiply
    194,307.20x = 291,403.20 × 75,910.40
  4. Step 4: Simplify right side
    194,307.20x = 22,120,533,473.28
  5. Step 5: Solve for x
    x = 22,120,533,473.28/194,307.20
  6. Step 6: Final answer
    x = 113,843.10

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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.