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Finding the Fourth Proportional to 104,715.78, 144,507.81 and 59,379.24

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Solution

The fourth proportional to 104,715.78, 144,507.81 and 59,379.24 is: 81,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,715.78 : 144,507.81 = 59,379.24 : x
  2. Step 2: Convert to fraction form
    104,715.78/144,507.81 = 59,379.24/x
  3. Step 3: Cross multiply
    104,715.78x = 144,507.81 × 59,379.24
  4. Step 4: Simplify right side
    104,715.78x = 8,580,763,931.86
  5. Step 5: Solve for x
    x = 8,580,763,931.86/104,715.78
  6. Step 6: Final answer
    x = 81,943.37

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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.