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Finding the Fourth Proportional to 59,699.06, 89,469.42 and 43,829.87

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Solution

The fourth proportional to 59,699.06, 89,469.42 and 43,829.87 is: 65,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,699.06 : 89,469.42 = 43,829.87 : x
  2. Step 2: Convert to fraction form
    59,699.06/89,469.42 = 43,829.87/x
  3. Step 3: Cross multiply
    59,699.06x = 89,469.42 × 43,829.87
  4. Step 4: Simplify right side
    59,699.06x = 3,921,432,600.23
  5. Step 5: Solve for x
    x = 3,921,432,600.23/59,699.06
  6. Step 6: Final answer
    x = 65,686.68

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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.