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Finding the Fourth Proportional to 74,853.78, 103,295.61 and 44,623.50

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Solution

The fourth proportional to 74,853.78, 103,295.61 and 44,623.50 is: 61,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,853.78 : 103,295.61 = 44,623.50 : x
  2. Step 2: Convert to fraction form
    74,853.78/103,295.61 = 44,623.50/x
  3. Step 3: Cross multiply
    74,853.78x = 103,295.61 × 44,623.50
  4. Step 4: Simplify right side
    74,853.78x = 4,609,411,652.84
  5. Step 5: Solve for x
    x = 4,609,411,652.84/74,853.78
  6. Step 6: Final answer
    x = 61,578.88

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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.