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Finding the Fourth Proportional to 74,709.63, 103,200.24 and 59,707.44

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Solution

The fourth proportional to 74,709.63, 103,200.24 and 59,707.44 is: 82,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709.63 : 103,200.24 = 59,707.44 : x
  2. Step 2: Convert to fraction form
    74,709.63/103,200.24 = 59,707.44/x
  3. Step 3: Cross multiply
    74,709.63x = 103,200.24 × 59,707.44
  4. Step 4: Simplify right side
    74,709.63x = 6,161,822,137.79
  5. Step 5: Solve for x
    x = 6,161,822,137.79/74,709.63
  6. Step 6: Final answer
    x = 82,476.95

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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.