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Finding the Fourth Proportional to 79,762.62, 119,685.66 and 51,675.48

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Solution

The fourth proportional to 79,762.62, 119,685.66 and 51,675.48 is: 77,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,762.62 : 119,685.66 = 51,675.48 : x
  2. Step 2: Convert to fraction form
    79,762.62/119,685.66 = 51,675.48/x
  3. Step 3: Cross multiply
    79,762.62x = 119,685.66 × 51,675.48
  4. Step 4: Simplify right side
    79,762.62x = 6,184,813,929.62
  5. Step 5: Solve for x
    x = 6,184,813,929.62/79,762.62
  6. Step 6: Final answer
    x = 77,540.26

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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.