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Finding the Fourth Proportional to 92,009.98, 138,014.80 and 28,834.94

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Solution

The fourth proportional to 92,009.98, 138,014.80 and 28,834.94 is: 43,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,009.98 : 138,014.80 = 28,834.94 : x
  2. Step 2: Convert to fraction form
    92,009.98/138,014.80 = 28,834.94/x
  3. Step 3: Cross multiply
    92,009.98x = 138,014.80 × 28,834.94
  4. Step 4: Simplify right side
    92,009.98x = 3,979,648,750.06
  5. Step 5: Solve for x
    x = 3,979,648,750.06/92,009.98
  6. Step 6: Final answer
    x = 43,252.36

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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.