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Finding the Fourth Proportional to 58,581.03, 87,779.53 and 45,286.63

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Solution

The fourth proportional to 58,581.03, 87,779.53 and 45,286.63 is: 67,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,581.03 : 87,779.53 = 45,286.63 : x
  2. Step 2: Convert to fraction form
    58,581.03/87,779.53 = 45,286.63/x
  3. Step 3: Cross multiply
    58,581.03x = 87,779.53 × 45,286.63
  4. Step 4: Simplify right side
    58,581.03x = 3,975,239,096.68
  5. Step 5: Solve for x
    x = 3,975,239,096.68/58,581.03
  6. Step 6: Final answer
    x = 67,858.81

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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.