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Finding the Fourth Proportional to 74,808, 103,236.48 and 41,273.28

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Solution

The fourth proportional to 74,808, 103,236.48 and 41,273.28 is: 56,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,808 : 103,236.48 = 41,273.28 : x
  2. Step 2: Convert to fraction form
    74,808/103,236.48 = 41,273.28/x
  3. Step 3: Cross multiply
    74,808x = 103,236.48 × 41,273.28
  4. Step 4: Simplify right side
    74,808x = 4,260,908,145.25
  5. Step 5: Solve for x
    x = 4,260,908,145.25/74,808
  6. Step 6: Final answer
    x = 56,957.92

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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.