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Finding the Fourth Proportional to 84,485.66, 116,577.16 and 48,668.66

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Solution

The fourth proportional to 84,485.66, 116,577.16 and 48,668.66 is: 67,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,485.66 : 116,577.16 = 48,668.66 : x
  2. Step 2: Convert to fraction form
    84,485.66/116,577.16 = 48,668.66/x
  3. Step 3: Cross multiply
    84,485.66x = 116,577.16 × 48,668.66
  4. Step 4: Simplify right side
    84,485.66x = 5,673,654,163.81
  5. Step 5: Solve for x
    x = 5,673,654,163.81/84,485.66
  6. Step 6: Final answer
    x = 67,155.23

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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.