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Finding the Fourth Proportional to 92,492.78, 127,640.34 and 50,051.30

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Solution

The fourth proportional to 92,492.78, 127,640.34 and 50,051.30 is: 69,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,492.78 : 127,640.34 = 50,051.30 : x
  2. Step 2: Convert to fraction form
    92,492.78/127,640.34 = 50,051.30/x
  3. Step 3: Cross multiply
    92,492.78x = 127,640.34 × 50,051.30
  4. Step 4: Simplify right side
    92,492.78x = 6,388,564,311.24
  5. Step 5: Solve for x
    x = 6,388,564,311.24/92,492.78
  6. Step 6: Final answer
    x = 69,070.96

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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.