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Finding the Fourth Proportional to 86,067, 118,783.60 and 48,341.25

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Solution

The fourth proportional to 86,067, 118,783.60 and 48,341.25 is: 66,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,067 : 118,783.60 = 48,341.25 : x
  2. Step 2: Convert to fraction form
    86,067/118,783.60 = 48,341.25/x
  3. Step 3: Cross multiply
    86,067x = 118,783.60 × 48,341.25
  4. Step 4: Simplify right side
    86,067x = 5,742,147,582.65
  5. Step 5: Solve for x
    x = 5,742,147,582.65/86,067
  6. Step 6: Final answer
    x = 66,717.18

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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.