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Finding the Fourth Proportional to 92,832.45, 128,108.49 and 50,390.98

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Solution

The fourth proportional to 92,832.45, 128,108.49 and 50,390.98 is: 69,539.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,832.45 : 128,108.49 = 50,390.98 : x
  2. Step 2: Convert to fraction form
    92,832.45/128,108.49 = 50,390.98/x
  3. Step 3: Cross multiply
    92,832.45x = 128,108.49 × 50,390.98
  4. Step 4: Simplify right side
    92,832.45x = 6,455,512,357.42
  5. Step 5: Solve for x
    x = 6,455,512,357.42/92,832.45
  6. Step 6: Final answer
    x = 69,539.39

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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.