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Finding the Fourth Proportional to 79,076.91, 118,484.10 and 55,654.14

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Solution

The fourth proportional to 79,076.91, 118,484.10 and 55,654.14 is: 83,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,076.91 : 118,484.10 = 55,654.14 : x
  2. Step 2: Convert to fraction form
    79,076.91/118,484.10 = 55,654.14/x
  3. Step 3: Cross multiply
    79,076.91x = 118,484.10 × 55,654.14
  4. Step 4: Simplify right side
    79,076.91x = 6,594,130,689.17
  5. Step 5: Solve for x
    x = 6,594,130,689.17/79,076.91
  6. Step 6: Final answer
    x = 83,388.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.