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Finding the Fourth Proportional to 94,609.10, 130,621.41 and 58,847.78

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Solution

The fourth proportional to 94,609.10, 130,621.41 and 58,847.78 is: 81,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,609.10 : 130,621.41 = 58,847.78 : x
  2. Step 2: Convert to fraction form
    94,609.10/130,621.41 = 58,847.78/x
  3. Step 3: Cross multiply
    94,609.10x = 130,621.41 × 58,847.78
  4. Step 4: Simplify right side
    94,609.10x = 7,686,779,998.97
  5. Step 5: Solve for x
    x = 7,686,779,998.97/94,609.10
  6. Step 6: Final answer
    x = 81,247.79

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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.