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Finding the Fourth Proportional to 104,590.95, 144,329.65 and 56,843.98

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Solution

The fourth proportional to 104,590.95, 144,329.65 and 56,843.98 is: 78,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,590.95 : 144,329.65 = 56,843.98 : x
  2. Step 2: Convert to fraction form
    104,590.95/144,329.65 = 56,843.98/x
  3. Step 3: Cross multiply
    104,590.95x = 144,329.65 × 56,843.98
  4. Step 4: Simplify right side
    104,590.95x = 8,204,271,235.07
  5. Step 5: Solve for x
    x = 8,204,271,235.07/104,590.95
  6. Step 6: Final answer
    x = 78,441.51

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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.