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Finding the Fourth Proportional to 295,079.40, 442,791.90 and 108,109.80

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Solution

The fourth proportional to 295,079.40, 442,791.90 and 108,109.80 is: 162,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,079.40 : 442,791.90 = 108,109.80 : x
  2. Step 2: Convert to fraction form
    295,079.40/442,791.90 = 108,109.80/x
  3. Step 3: Cross multiply
    295,079.40x = 442,791.90 × 108,109.80
  4. Step 4: Simplify right side
    295,079.40x = 47,870,143,750.62
  5. Step 5: Solve for x
    x = 47,870,143,750.62/295,079.40
  6. Step 6: Final answer
    x = 162,228.01

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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.