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Finding the Fourth Proportional to 92,892.83, 128,189.99 and 50,450.45

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Solution

The fourth proportional to 92,892.83, 128,189.99 and 50,450.45 is: 69,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,892.83 : 128,189.99 = 50,450.45 : x
  2. Step 2: Convert to fraction form
    92,892.83/128,189.99 = 50,450.45/x
  3. Step 3: Cross multiply
    92,892.83x = 128,189.99 × 50,450.45
  4. Step 4: Simplify right side
    92,892.83x = 6,467,242,166.17
  5. Step 5: Solve for x
    x = 6,467,242,166.17/92,892.83
  6. Step 6: Final answer
    x = 69,620.47

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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.