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Finding the Fourth Proportional to 74,852, 103,295.76 and 41,320.16

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Solution

The fourth proportional to 74,852, 103,295.76 and 41,320.16 is: 57,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,852 : 103,295.76 = 41,320.16 : x
  2. Step 2: Convert to fraction form
    74,852/103,295.76 = 41,320.16/x
  3. Step 3: Cross multiply
    74,852x = 103,295.76 × 41,320.16
  4. Step 4: Simplify right side
    74,852x = 4,268,197,330.52
  5. Step 5: Solve for x
    x = 4,268,197,330.52/74,852
  6. Step 6: Final answer
    x = 57,021.82

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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.