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Finding the Fourth Proportional to 74,966, 112,379.80 and 37,493.47

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Solution

The fourth proportional to 74,966, 112,379.80 and 37,493.47 is: 56,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,966 : 112,379.80 = 37,493.47 : x
  2. Step 2: Convert to fraction form
    74,966/112,379.80 = 37,493.47/x
  3. Step 3: Cross multiply
    74,966x = 112,379.80 × 37,493.47
  4. Step 4: Simplify right side
    74,966x = 4,213,508,659.91
  5. Step 5: Solve for x
    x = 4,213,508,659.91/74,966
  6. Step 6: Final answer
    x = 56,205.60

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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.