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Finding the Fourth Proportional to 94,021, 129,752.82 and 54,277

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Solution

The fourth proportional to 94,021, 129,752.82 and 54,277 is: 74,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,021 : 129,752.82 = 54,277 : x
  2. Step 2: Convert to fraction form
    94,021/129,752.82 = 54,277/x
  3. Step 3: Cross multiply
    94,021x = 129,752.82 × 54,277
  4. Step 4: Simplify right side
    94,021x = 7,042,593,811.14
  5. Step 5: Solve for x
    x = 7,042,593,811.14/94,021
  6. Step 6: Final answer
    x = 74,904.48

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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.