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Finding the Fourth Proportional to 74,874.62, 103,326.18 and 40,883.00

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Solution

The fourth proportional to 74,874.62, 103,326.18 and 40,883.00 is: 56,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,874.62 : 103,326.18 = 40,883.00 : x
  2. Step 2: Convert to fraction form
    74,874.62/103,326.18 = 40,883.00/x
  3. Step 3: Cross multiply
    74,874.62x = 103,326.18 × 40,883.00
  4. Step 4: Simplify right side
    74,874.62x = 4,224,283,700.31
  5. Step 5: Solve for x
    x = 4,224,283,700.31/74,874.62
  6. Step 6: Final answer
    x = 56,418.10

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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.