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Finding the Fourth Proportional to 54,300.76, 74,934.95 and 33,080.03

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Solution

The fourth proportional to 54,300.76, 74,934.95 and 33,080.03 is: 45,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,300.76 : 74,934.95 = 33,080.03 : x
  2. Step 2: Convert to fraction form
    54,300.76/74,934.95 = 33,080.03/x
  3. Step 3: Cross multiply
    54,300.76x = 74,934.95 × 33,080.03
  4. Step 4: Simplify right side
    54,300.76x = 2,478,850,394.05
  5. Step 5: Solve for x
    x = 2,478,850,394.05/54,300.76
  6. Step 6: Final answer
    x = 45,650.38

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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.