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Finding the Fourth Proportional to 130,578.98, 195,885.87 and 51,674.75

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Solution

The fourth proportional to 130,578.98, 195,885.87 and 51,674.75 is: 77,519.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,578.98 : 195,885.87 = 51,674.75 : x
  2. Step 2: Convert to fraction form
    130,578.98/195,885.87 = 51,674.75/x
  3. Step 3: Cross multiply
    130,578.98x = 195,885.87 × 51,674.75
  4. Step 4: Simplify right side
    130,578.98x = 10,122,352,381.35
  5. Step 5: Solve for x
    x = 10,122,352,381.35/130,578.98
  6. Step 6: Final answer
    x = 77,519.01

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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.