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Finding the Fourth Proportional to 86,464.88, 119,323.36 and 48,739.12

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Solution

The fourth proportional to 86,464.88, 119,323.36 and 48,739.12 is: 67,261.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,464.88 : 119,323.36 = 48,739.12 : x
  2. Step 2: Convert to fraction form
    86,464.88/119,323.36 = 48,739.12/x
  3. Step 3: Cross multiply
    86,464.88x = 119,323.36 × 48,739.12
  4. Step 4: Simplify right side
    86,464.88x = 5,815,715,561.84
  5. Step 5: Solve for x
    x = 5,815,715,561.84/86,464.88
  6. Step 6: Final answer
    x = 67,261.01

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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.