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Finding the Fourth Proportional to 86,480.40, 119,350.20 and 48,762.48

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Solution

The fourth proportional to 86,480.40, 119,350.20 and 48,762.48 is: 67,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,480.40 : 119,350.20 = 48,762.48 : x
  2. Step 2: Convert to fraction form
    86,480.40/119,350.20 = 48,762.48/x
  3. Step 3: Cross multiply
    86,480.40x = 119,350.20 × 48,762.48
  4. Step 4: Simplify right side
    86,480.40x = 5,819,811,740.50
  5. Step 5: Solve for x
    x = 5,819,811,740.50/86,480.40
  6. Step 6: Final answer
    x = 67,296.31

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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.