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Finding the Fourth Proportional to 104,615.58, 144,370.44 and 56,869.02

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Solution

The fourth proportional to 104,615.58, 144,370.44 and 56,869.02 is: 78,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.58 : 144,370.44 = 56,869.02 : x
  2. Step 2: Convert to fraction form
    104,615.58/144,370.44 = 56,869.02/x
  3. Step 3: Cross multiply
    104,615.58x = 144,370.44 × 56,869.02
  4. Step 4: Simplify right side
    104,615.58x = 8,210,205,439.77
  5. Step 5: Solve for x
    x = 8,210,205,439.77/104,615.58
  6. Step 6: Final answer
    x = 78,479.76

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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.