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Finding the Fourth Proportional to 79,701.90, 119,580.53 and 35,359.79

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Solution

The fourth proportional to 79,701.90, 119,580.53 and 35,359.79 is: 53,051.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,701.90 : 119,580.53 = 35,359.79 : x
  2. Step 2: Convert to fraction form
    79,701.90/119,580.53 = 35,359.79/x
  3. Step 3: Cross multiply
    79,701.90x = 119,580.53 × 35,359.79
  4. Step 4: Simplify right side
    79,701.90x = 4,228,342,749.94
  5. Step 5: Solve for x
    x = 4,228,342,749.94/79,701.90
  6. Step 6: Final answer
    x = 53,051.97

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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.