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Finding the Fourth Proportional to 80,594.39, 120,924.65 and 42,633.77

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Solution

The fourth proportional to 80,594.39, 120,924.65 and 42,633.77 is: 63,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,594.39 : 120,924.65 = 42,633.77 : x
  2. Step 2: Convert to fraction form
    80,594.39/120,924.65 = 42,633.77/x
  3. Step 3: Cross multiply
    80,594.39x = 120,924.65 × 42,633.77
  4. Step 4: Simplify right side
    80,594.39x = 5,155,473,217.39
  5. Step 5: Solve for x
    x = 5,155,473,217.39/80,594.39
  6. Step 6: Final answer
    x = 63,968.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.