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Finding the Fourth Proportional to 92,124, 127,131.12 and 52,380

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Solution

The fourth proportional to 92,124, 127,131.12 and 52,380 is: 72,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,124 : 127,131.12 = 52,380 : x
  2. Step 2: Convert to fraction form
    92,124/127,131.12 = 52,380/x
  3. Step 3: Cross multiply
    92,124x = 127,131.12 × 52,380
  4. Step 4: Simplify right side
    92,124x = 6,659,128,065.60
  5. Step 5: Solve for x
    x = 6,659,128,065.60/92,124
  6. Step 6: Final answer
    x = 72,284.40

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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.