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Finding the Fourth Proportional to 92,755.68, 128,005.98 and 54,514.68

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Solution

The fourth proportional to 92,755.68, 128,005.98 and 54,514.68 is: 75,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,755.68 : 128,005.98 = 54,514.68 : x
  2. Step 2: Convert to fraction form
    92,755.68/128,005.98 = 54,514.68/x
  3. Step 3: Cross multiply
    92,755.68x = 128,005.98 × 54,514.68
  4. Step 4: Simplify right side
    92,755.68x = 6,978,204,826.64
  5. Step 5: Solve for x
    x = 6,978,204,826.64/92,755.68
  6. Step 6: Final answer
    x = 75,232.10

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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.