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Finding the Fourth Proportional to 113,816.76, 157,082.94 and 63,519

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Solution

The fourth proportional to 113,816.76, 157,082.94 and 63,519 is: 87,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,816.76 : 157,082.94 = 63,519 : x
  2. Step 2: Convert to fraction form
    113,816.76/157,082.94 = 63,519/x
  3. Step 3: Cross multiply
    113,816.76x = 157,082.94 × 63,519
  4. Step 4: Simplify right side
    113,816.76x = 9,977,751,265.86
  5. Step 5: Solve for x
    x = 9,977,751,265.86/113,816.76
  6. Step 6: Final answer
    x = 87,665.04

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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.