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Finding the Fourth Proportional to 94,700.56, 130,694.16 and 54,428.38

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Solution

The fourth proportional to 94,700.56, 130,694.16 and 54,428.38 is: 75,115.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,700.56 : 130,694.16 = 54,428.38 : x
  2. Step 2: Convert to fraction form
    94,700.56/130,694.16 = 54,428.38/x
  3. Step 3: Cross multiply
    94,700.56x = 130,694.16 × 54,428.38
  4. Step 4: Simplify right side
    94,700.56x = 7,113,471,404.26
  5. Step 5: Solve for x
    x = 7,113,471,404.26/94,700.56
  6. Step 6: Final answer
    x = 75,115.41

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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.