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Finding the Fourth Proportional to 74,616.76, 102,971.22 and 41,082.76

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Solution

The fourth proportional to 74,616.76, 102,971.22 and 41,082.76 is: 56,694.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,616.76 : 102,971.22 = 41,082.76 : x
  2. Step 2: Convert to fraction form
    74,616.76/102,971.22 = 41,082.76/x
  3. Step 3: Cross multiply
    74,616.76x = 102,971.22 × 41,082.76
  4. Step 4: Simplify right side
    74,616.76x = 4,230,341,918.17
  5. Step 5: Solve for x
    x = 4,230,341,918.17/74,616.76
  6. Step 6: Final answer
    x = 56,694.26

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1.5x scale

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.