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Finding the Fourth Proportional to 70,149.80, 96,800.42 and 43,300.96

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Solution

The fourth proportional to 70,149.80, 96,800.42 and 43,300.96 is: 59,751.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,149.80 : 96,800.42 = 43,300.96 : x
  2. Step 2: Convert to fraction form
    70,149.80/96,800.42 = 43,300.96/x
  3. Step 3: Cross multiply
    70,149.80x = 96,800.42 × 43,300.96
  4. Step 4: Simplify right side
    70,149.80x = 4,191,550,980.65
  5. Step 5: Solve for x
    x = 4,191,550,980.65/70,149.80
  6. Step 6: Final answer
    x = 59,751.43

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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.