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Finding the Fourth Proportional to 92,014.51, 138,021.79 and 28,834.63

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Solution

The fourth proportional to 92,014.51, 138,021.79 and 28,834.63 is: 43,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,014.51 : 138,021.79 = 28,834.63 : x
  2. Step 2: Convert to fraction form
    92,014.51/138,021.79 = 28,834.63/x
  3. Step 3: Cross multiply
    92,014.51x = 138,021.79 × 28,834.63
  4. Step 4: Simplify right side
    92,014.51x = 3,979,806,484.39
  5. Step 5: Solve for x
    x = 3,979,806,484.39/92,014.51
  6. Step 6: Final answer
    x = 43,251.94

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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.