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Finding the Fourth Proportional to 49,980.66, 74,933.95 and 30,254.55

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Solution

The fourth proportional to 49,980.66, 74,933.95 and 30,254.55 is: 45,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,980.66 : 74,933.95 = 30,254.55 : x
  2. Step 2: Convert to fraction form
    49,980.66/74,933.95 = 30,254.55/x
  3. Step 3: Cross multiply
    49,980.66x = 74,933.95 × 30,254.55
  4. Step 4: Simplify right side
    49,980.66x = 2,267,092,936.97
  5. Step 5: Solve for x
    x = 2,267,092,936.97/49,980.66
  6. Step 6: Final answer
    x = 45,359.40

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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.