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Finding the Fourth Proportional to 118,690.79, 163,778.76 and 94,553.24

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Solution

The fourth proportional to 118,690.79, 163,778.76 and 94,553.24 is: 130,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,690.79 : 163,778.76 = 94,553.24 : x
  2. Step 2: Convert to fraction form
    118,690.79/163,778.76 = 94,553.24/x
  3. Step 3: Cross multiply
    118,690.79x = 163,778.76 × 94,553.24
  4. Step 4: Simplify right side
    118,690.79x = 15,485,811,582.29
  5. Step 5: Solve for x
    x = 15,485,811,582.29/118,690.79
  6. Step 6: Final answer
    x = 130,471.89

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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.