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Finding the Fourth Proportional to 86,460.48, 119,308.32 and 48,744

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Solution

The fourth proportional to 86,460.48, 119,308.32 and 48,744 is: 67,262.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,460.48 : 119,308.32 = 48,744 : x
  2. Step 2: Convert to fraction form
    86,460.48/119,308.32 = 48,744/x
  3. Step 3: Cross multiply
    86,460.48x = 119,308.32 × 48,744
  4. Step 4: Simplify right side
    86,460.48x = 5,815,564,750.08
  5. Step 5: Solve for x
    x = 5,815,564,750.08/86,460.48
  6. Step 6: Final answer
    x = 67,262.69

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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.