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Finding the Fourth Proportional to 64,859.86, 97,289.79 and 50,090.32

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Solution

The fourth proportional to 64,859.86, 97,289.79 and 50,090.32 is: 75,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,859.86 : 97,289.79 = 50,090.32 : x
  2. Step 2: Convert to fraction form
    64,859.86/97,289.79 = 50,090.32/x
  3. Step 3: Cross multiply
    64,859.86x = 97,289.79 × 50,090.32
  4. Step 4: Simplify right side
    64,859.86x = 4,873,276,713.83
  5. Step 5: Solve for x
    x = 4,873,276,713.83/64,859.86
  6. Step 6: Final answer
    x = 75,135.48

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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.