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Finding the Fourth Proportional to 104,652.63, 144,420.30 and 56,906.10

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Solution

The fourth proportional to 104,652.63, 144,420.30 and 56,906.10 is: 78,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,652.63 : 144,420.30 = 56,906.10 : x
  2. Step 2: Convert to fraction form
    104,652.63/144,420.30 = 56,906.10/x
  3. Step 3: Cross multiply
    104,652.63x = 144,420.30 × 56,906.10
  4. Step 4: Simplify right side
    104,652.63x = 8,218,396,033.83
  5. Step 5: Solve for x
    x = 8,218,396,033.83/104,652.63
  6. Step 6: Final answer
    x = 78,530.24

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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.