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Finding the Fourth Proportional to 199,420.15, 299,042.65 and 74,673.67

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Solution

The fourth proportional to 199,420.15, 299,042.65 and 74,673.67 is: 111,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,420.15 : 299,042.65 = 74,673.67 : x
  2. Step 2: Convert to fraction form
    199,420.15/299,042.65 = 74,673.67/x
  3. Step 3: Cross multiply
    199,420.15x = 299,042.65 × 74,673.67
  4. Step 4: Simplify right side
    199,420.15x = 22,330,612,162.03
  5. Step 5: Solve for x
    x = 22,330,612,162.03/199,420.15
  6. Step 6: Final answer
    x = 111,977.71

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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.