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Finding the Fourth Proportional to 295,113.80, 442,728.30 and 126,633.80

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Solution

The fourth proportional to 295,113.80, 442,728.30 and 126,633.80 is: 189,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,113.80 : 442,728.30 = 126,633.80 : x
  2. Step 2: Convert to fraction form
    295,113.80/442,728.30 = 126,633.80/x
  3. Step 3: Cross multiply
    295,113.80x = 442,728.30 × 126,633.80
  4. Step 4: Simplify right side
    295,113.80x = 56,064,366,996.54
  5. Step 5: Solve for x
    x = 56,064,366,996.54/295,113.80
  6. Step 6: Final answer
    x = 189,975.42

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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.