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Finding the Fourth Proportional to 74,873.72, 103,313.54 and 44,242.55

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Solution

The fourth proportional to 74,873.72, 103,313.54 and 44,242.55 is: 61,047.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,873.72 : 103,313.54 = 44,242.55 : x
  2. Step 2: Convert to fraction form
    74,873.72/103,313.54 = 44,242.55/x
  3. Step 3: Cross multiply
    74,873.72x = 103,313.54 × 44,242.55
  4. Step 4: Simplify right side
    74,873.72x = 4,570,853,721.35
  5. Step 5: Solve for x
    x = 4,570,853,721.35/74,873.72
  6. Step 6: Final answer
    x = 61,047.51

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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.