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Finding the Fourth Proportional to 67,380.66, 92,993.92 and 56,030.64

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Solution

The fourth proportional to 67,380.66, 92,993.92 and 56,030.64 is: 77,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,380.66 : 92,993.92 = 56,030.64 : x
  2. Step 2: Convert to fraction form
    67,380.66/92,993.92 = 56,030.64/x
  3. Step 3: Cross multiply
    67,380.66x = 92,993.92 × 56,030.64
  4. Step 4: Simplify right side
    67,380.66x = 5,210,508,853.71
  5. Step 5: Solve for x
    x = 5,210,508,853.71/67,380.66
  6. Step 6: Final answer
    x = 77,329.44

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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.