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Finding the Fourth Proportional to 53,695.28, 80,181.28 and 43,854.08

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Solution

The fourth proportional to 53,695.28, 80,181.28 and 43,854.08 is: 65,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,695.28 : 80,181.28 = 43,854.08 : x
  2. Step 2: Convert to fraction form
    53,695.28/80,181.28 = 43,854.08/x
  3. Step 3: Cross multiply
    53,695.28x = 80,181.28 × 43,854.08
  4. Step 4: Simplify right side
    53,695.28x = 3,516,276,267.62
  5. Step 5: Solve for x
    x = 3,516,276,267.62/53,695.28
  6. Step 6: Final answer
    x = 65,485.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.