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Finding the Fourth Proportional to 79,483.42, 119,326.30 and 51,520.49

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Solution

The fourth proportional to 79,483.42, 119,326.30 and 51,520.49 is: 77,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,483.42 : 119,326.30 = 51,520.49 : x
  2. Step 2: Convert to fraction form
    79,483.42/119,326.30 = 51,520.49/x
  3. Step 3: Cross multiply
    79,483.42x = 119,326.30 × 51,520.49
  4. Step 4: Simplify right side
    79,483.42x = 6,147,748,849.26
  5. Step 5: Solve for x
    x = 6,147,748,849.26/79,483.42
  6. Step 6: Final answer
    x = 77,346.31

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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.