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Finding the Fourth Proportional to 104,174, 143,762.94 and 63,864.56

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Solution

The fourth proportional to 104,174, 143,762.94 and 63,864.56 is: 88,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,174 : 143,762.94 = 63,864.56 : x
  2. Step 2: Convert to fraction form
    104,174/143,762.94 = 63,864.56/x
  3. Step 3: Cross multiply
    104,174x = 143,762.94 × 63,864.56
  4. Step 4: Simplify right side
    104,174x = 9,181,356,907.41
  5. Step 5: Solve for x
    x = 9,181,356,907.41/104,174
  6. Step 6: Final answer
    x = 88,134.82

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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.