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Finding the Fourth Proportional to 74,519.53, 102,766.66 and 48,980.77

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Solution

The fourth proportional to 74,519.53, 102,766.66 and 48,980.77 is: 67,547.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,519.53 : 102,766.66 = 48,980.77 : x
  2. Step 2: Convert to fraction form
    74,519.53/102,766.66 = 48,980.77/x
  3. Step 3: Cross multiply
    74,519.53x = 102,766.66 × 48,980.77
  4. Step 4: Simplify right side
    74,519.53x = 5,033,589,892.22
  5. Step 5: Solve for x
    x = 5,033,589,892.22/74,519.53
  6. Step 6: Final answer
    x = 67,547.26

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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.