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Finding the Fourth Proportional to 92,256.72, 127,321.92 and 51,978.32

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Solution

The fourth proportional to 92,256.72, 127,321.92 and 51,978.32 is: 71,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,256.72 : 127,321.92 = 51,978.32 : x
  2. Step 2: Convert to fraction form
    92,256.72/127,321.92 = 51,978.32/x
  3. Step 3: Cross multiply
    92,256.72x = 127,321.92 × 51,978.32
  4. Step 4: Simplify right side
    92,256.72x = 6,617,979,500.77
  5. Step 5: Solve for x
    x = 6,617,979,500.77/92,256.72
  6. Step 6: Final answer
    x = 71,734.39

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1.5x scale

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.