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Finding the Fourth Proportional to 74,642.82, 102,960.81 and 44,407.68

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Solution

The fourth proportional to 74,642.82, 102,960.81 and 44,407.68 is: 61,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,642.82 : 102,960.81 = 44,407.68 : x
  2. Step 2: Convert to fraction form
    74,642.82/102,960.81 = 44,407.68/x
  3. Step 3: Cross multiply
    74,642.82x = 102,960.81 × 44,407.68
  4. Step 4: Simplify right side
    74,642.82x = 4,572,250,703.02
  5. Step 5: Solve for x
    x = 4,572,250,703.02/74,642.82
  6. Step 6: Final answer
    x = 61,255.06

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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.