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Finding the Fourth Proportional to 104,314.92, 143,953.80 and 56,568.36

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Solution

The fourth proportional to 104,314.92, 143,953.80 and 56,568.36 is: 78,063.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,314.92 : 143,953.80 = 56,568.36 : x
  2. Step 2: Convert to fraction form
    104,314.92/143,953.80 = 56,568.36/x
  3. Step 3: Cross multiply
    104,314.92x = 143,953.80 × 56,568.36
  4. Step 4: Simplify right side
    104,314.92x = 8,143,230,381.77
  5. Step 5: Solve for x
    x = 8,143,230,381.77/104,314.92
  6. Step 6: Final answer
    x = 78,063.91

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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.