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Finding the Fourth Proportional to 104,652.68, 144,419.92 and 56,906.01

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Solution

The fourth proportional to 104,652.68, 144,419.92 and 56,906.01 is: 78,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,652.68 : 144,419.92 = 56,906.01 : x
  2. Step 2: Convert to fraction form
    104,652.68/144,419.92 = 56,906.01/x
  3. Step 3: Cross multiply
    104,652.68x = 144,419.92 × 56,906.01
  4. Step 4: Simplify right side
    104,652.68x = 8,218,361,411.72
  5. Step 5: Solve for x
    x = 8,218,361,411.72/104,652.68
  6. Step 6: Final answer
    x = 78,529.87

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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.