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Finding the Fourth Proportional to 137,445.33, 206,200.26 and 42,670.67

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Solution

The fourth proportional to 137,445.33, 206,200.26 and 42,670.67 is: 64,016.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,445.33 : 206,200.26 = 42,670.67 : x
  2. Step 2: Convert to fraction form
    137,445.33/206,200.26 = 42,670.67/x
  3. Step 3: Cross multiply
    137,445.33x = 206,200.26 × 42,670.67
  4. Step 4: Simplify right side
    137,445.33x = 8,798,703,763.87
  5. Step 5: Solve for x
    x = 8,798,703,763.87/137,445.33
  6. Step 6: Final answer
    x = 64,016.03

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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.