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Finding the Fourth Proportional to 74,664.87, 103,037.52 and 41,130.87

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Solution

The fourth proportional to 74,664.87, 103,037.52 and 41,130.87 is: 56,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,664.87 : 103,037.52 = 41,130.87 : x
  2. Step 2: Convert to fraction form
    74,664.87/103,037.52 = 41,130.87/x
  3. Step 3: Cross multiply
    74,664.87x = 103,037.52 × 41,130.87
  4. Step 4: Simplify right side
    74,664.87x = 4,238,022,840.24
  5. Step 5: Solve for x
    x = 4,238,022,840.24/74,664.87
  6. Step 6: Final answer
    x = 56,760.60

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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.