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Finding the Fourth Proportional to 116,690.56, 160,933.44 and 98,628.64

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Solution

The fourth proportional to 116,690.56, 160,933.44 and 98,628.64 is: 136,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,690.56 : 160,933.44 = 98,628.64 : x
  2. Step 2: Convert to fraction form
    116,690.56/160,933.44 = 98,628.64/x
  3. Step 3: Cross multiply
    116,690.56x = 160,933.44 × 98,628.64
  4. Step 4: Simplify right side
    116,690.56x = 15,872,646,317.72
  5. Step 5: Solve for x
    x = 15,872,646,317.72/116,690.56
  6. Step 6: Final answer
    x = 136,023.40

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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.