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Finding the Fourth Proportional to 86,267.35, 119,048.70 and 48,541.60

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Solution

The fourth proportional to 86,267.35, 119,048.70 and 48,541.60 is: 66,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,267.35 : 119,048.70 = 48,541.60 : x
  2. Step 2: Convert to fraction form
    86,267.35/119,048.70 = 48,541.60/x
  3. Step 3: Cross multiply
    86,267.35x = 119,048.70 × 48,541.60
  4. Step 4: Simplify right side
    86,267.35x = 5,778,814,375.92
  5. Step 5: Solve for x
    x = 5,778,814,375.92/86,267.35
  6. Step 6: Final answer
    x = 66,987.27

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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.