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Finding the Fourth Proportional to 104,812.88, 144,644.33 and 57,068.82

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Solution

The fourth proportional to 104,812.88, 144,644.33 and 57,068.82 is: 78,756.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.88 : 144,644.33 = 57,068.82 : x
  2. Step 2: Convert to fraction form
    104,812.88/144,644.33 = 57,068.82/x
  3. Step 3: Cross multiply
    104,812.88x = 144,644.33 × 57,068.82
  4. Step 4: Simplify right side
    104,812.88x = 8,254,681,375.46
  5. Step 5: Solve for x
    x = 8,254,681,375.46/104,812.88
  6. Step 6: Final answer
    x = 78,756.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.