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Finding the Fourth Proportional to 74,747.34, 103,133.25 and 44,513.28

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Solution

The fourth proportional to 74,747.34, 103,133.25 and 44,513.28 is: 61,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.34 : 103,133.25 = 44,513.28 : x
  2. Step 2: Convert to fraction form
    74,747.34/103,133.25 = 44,513.28/x
  3. Step 3: Cross multiply
    74,747.34x = 103,133.25 × 44,513.28
  4. Step 4: Simplify right side
    74,747.34x = 4,590,799,234.56
  5. Step 5: Solve for x
    x = 4,590,799,234.56/74,747.34
  6. Step 6: Final answer
    x = 61,417.56

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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.