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Finding the Fourth Proportional to 104,590.42, 144,335.72 and 56,843.82

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Solution

The fourth proportional to 104,590.42, 144,335.72 and 56,843.82 is: 78,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,590.42 : 144,335.72 = 56,843.82 : x
  2. Step 2: Convert to fraction form
    104,590.42/144,335.72 = 56,843.82/x
  3. Step 3: Cross multiply
    104,590.42x = 144,335.72 × 56,843.82
  4. Step 4: Simplify right side
    104,590.42x = 8,204,593,403.03
  5. Step 5: Solve for x
    x = 8,204,593,403.03/104,590.42
  6. Step 6: Final answer
    x = 78,444.98

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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.