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Finding the Fourth Proportional to 80,392.46, 120,577.52 and 56,303.79

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Solution

The fourth proportional to 80,392.46, 120,577.52 and 56,303.79 is: 84,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,392.46 : 120,577.52 = 56,303.79 : x
  2. Step 2: Convert to fraction form
    80,392.46/120,577.52 = 56,303.79/x
  3. Step 3: Cross multiply
    80,392.46x = 120,577.52 × 56,303.79
  4. Step 4: Simplify right side
    80,392.46x = 6,788,971,573.29
  5. Step 5: Solve for x
    x = 6,788,971,573.29/80,392.46
  6. Step 6: Final answer
    x = 84,447.87

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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.