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Finding the Fourth Proportional to 69,994.55, 96,564.91 and 43,090.31

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Solution

The fourth proportional to 69,994.55, 96,564.91 and 43,090.31 is: 59,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,994.55 : 96,564.91 = 43,090.31 : x
  2. Step 2: Convert to fraction form
    69,994.55/96,564.91 = 43,090.31/x
  3. Step 3: Cross multiply
    69,994.55x = 96,564.91 × 43,090.31
  4. Step 4: Simplify right side
    69,994.55x = 4,161,011,907.02
  5. Step 5: Solve for x
    x = 4,161,011,907.02/69,994.55
  6. Step 6: Final answer
    x = 59,447.66

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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.