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Finding the Fourth Proportional to 86,582.75, 119,483.03 and 48,342.89

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Solution

The fourth proportional to 86,582.75, 119,483.03 and 48,342.89 is: 66,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,582.75 : 119,483.03 = 48,342.89 : x
  2. Step 2: Convert to fraction form
    86,582.75/119,483.03 = 48,342.89/x
  3. Step 3: Cross multiply
    86,582.75x = 119,483.03 × 48,342.89
  4. Step 4: Simplify right side
    86,582.75x = 5,776,154,976.16
  5. Step 5: Solve for x
    x = 5,776,154,976.16/86,582.75
  6. Step 6: Final answer
    x = 66,712.54

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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.