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Finding the Fourth Proportional to 79,784.69, 119,697.54 and 29,865.51

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Solution

The fourth proportional to 79,784.69, 119,697.54 and 29,865.51 is: 44,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,784.69 : 119,697.54 = 29,865.51 : x
  2. Step 2: Convert to fraction form
    79,784.69/119,697.54 = 29,865.51/x
  3. Step 3: Cross multiply
    79,784.69x = 119,697.54 × 29,865.51
  4. Step 4: Simplify right side
    79,784.69x = 3,574,828,077.85
  5. Step 5: Solve for x
    x = 3,574,828,077.85/79,784.69
  6. Step 6: Final answer
    x = 44,805.94

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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.