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Finding the Fourth Proportional to 295,920.80, 443,881.20 and 189,632.60

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Solution

The fourth proportional to 295,920.80, 443,881.20 and 189,632.60 is: 284,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,920.80 : 443,881.20 = 189,632.60 : x
  2. Step 2: Convert to fraction form
    295,920.80/443,881.20 = 189,632.60/x
  3. Step 3: Cross multiply
    295,920.80x = 443,881.20 × 189,632.60
  4. Step 4: Simplify right side
    295,920.80x = 84,174,346,047.12
  5. Step 5: Solve for x
    x = 84,174,346,047.12/295,920.80
  6. Step 6: Final answer
    x = 284,448.90

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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.