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Finding the Fourth Proportional to 80,430.90, 111,007.90 and 44,632.43

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Solution

The fourth proportional to 80,430.90, 111,007.90 and 44,632.43 is: 61,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,430.90 : 111,007.90 = 44,632.43 : x
  2. Step 2: Convert to fraction form
    80,430.90/111,007.90 = 44,632.43/x
  3. Step 3: Cross multiply
    80,430.90x = 111,007.90 × 44,632.43
  4. Step 4: Simplify right side
    80,430.90x = 4,954,552,326.20
  5. Step 5: Solve for x
    x = 4,954,552,326.20/80,430.90
  6. Step 6: Final answer
    x = 61,600.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.