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Finding the Fourth Proportional to 104,488.97, 144,193.50 and 56,742.66

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Solution

The fourth proportional to 104,488.97, 144,193.50 and 56,742.66 is: 78,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,488.97 : 144,193.50 = 56,742.66 : x
  2. Step 2: Convert to fraction form
    104,488.97/144,193.50 = 56,742.66/x
  3. Step 3: Cross multiply
    104,488.97x = 144,193.50 × 56,742.66
  4. Step 4: Simplify right side
    104,488.97x = 8,181,922,416.77
  5. Step 5: Solve for x
    x = 8,181,922,416.77/104,488.97
  6. Step 6: Final answer
    x = 78,304.18

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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.