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Finding the Fourth Proportional to 194,030.70, 290,462.85 and 115,104.30

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Solution

The fourth proportional to 194,030.70, 290,462.85 and 115,104.30 is: 172,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,030.70 : 290,462.85 = 115,104.30 : x
  2. Step 2: Convert to fraction form
    194,030.70/290,462.85 = 115,104.30/x
  3. Step 3: Cross multiply
    194,030.70x = 290,462.85 × 115,104.30
  4. Step 4: Simplify right side
    194,030.70x = 33,433,523,025.26
  5. Step 5: Solve for x
    x = 33,433,523,025.26/194,030.70
  6. Step 6: Final answer
    x = 172,310.48

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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.