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Finding the Fourth Proportional to 74,498.57, 102,808.02 and 40,964.57

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Solution

The fourth proportional to 74,498.57, 102,808.02 and 40,964.57 is: 56,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.57 : 102,808.02 = 40,964.57 : x
  2. Step 2: Convert to fraction form
    74,498.57/102,808.02 = 40,964.57/x
  3. Step 3: Cross multiply
    74,498.57x = 102,808.02 × 40,964.57
  4. Step 4: Simplify right side
    74,498.57x = 4,211,485,612.99
  5. Step 5: Solve for x
    x = 4,211,485,612.99/74,498.57
  6. Step 6: Final answer
    x = 56,531.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.