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Finding the Fourth Proportional to 104,662.42, 144,281.73 and 79,468.18

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Solution

The fourth proportional to 104,662.42, 144,281.73 and 79,468.18 is: 109,550.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,662.42 : 144,281.73 = 79,468.18 : x
  2. Step 2: Convert to fraction form
    104,662.42/144,281.73 = 79,468.18/x
  3. Step 3: Cross multiply
    104,662.42x = 144,281.73 × 79,468.18
  4. Step 4: Simplify right side
    104,662.42x = 11,465,806,490.35
  5. Step 5: Solve for x
    x = 11,465,806,490.35/104,662.42
  6. Step 6: Final answer
    x = 109,550.37

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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.