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Finding the Fourth Proportional to 338,082.28, 507,380.52 and 125,051.76

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Solution

The fourth proportional to 338,082.28, 507,380.52 and 125,051.76 is: 187,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,082.28 : 507,380.52 = 125,051.76 : x
  2. Step 2: Convert to fraction form
    338,082.28/507,380.52 = 125,051.76/x
  3. Step 3: Cross multiply
    338,082.28x = 507,380.52 × 125,051.76
  4. Step 4: Simplify right side
    338,082.28x = 63,448,827,015.72
  5. Step 5: Solve for x
    x = 63,448,827,015.72/338,082.28
  6. Step 6: Final answer
    x = 187,672.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.