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Finding the Fourth Proportional to 92,135.22, 138,094.47 and 52,719.54

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Solution

The fourth proportional to 92,135.22, 138,094.47 and 52,719.54 is: 79,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,135.22 : 138,094.47 = 52,719.54 : x
  2. Step 2: Convert to fraction form
    92,135.22/138,094.47 = 52,719.54/x
  3. Step 3: Cross multiply
    92,135.22x = 138,094.47 × 52,719.54
  4. Step 4: Simplify right side
    92,135.22x = 7,280,276,934.94
  5. Step 5: Solve for x
    x = 7,280,276,934.94/92,135.22
  6. Step 6: Final answer
    x = 79,017.31

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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.