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Finding the Fourth Proportional to 92,581.94, 127,763.12 and 50,140.51

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Solution

The fourth proportional to 92,581.94, 127,763.12 and 50,140.51 is: 69,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,581.94 : 127,763.12 = 50,140.51 : x
  2. Step 2: Convert to fraction form
    92,581.94/127,763.12 = 50,140.51/x
  3. Step 3: Cross multiply
    92,581.94x = 127,763.12 × 50,140.51
  4. Step 4: Simplify right side
    92,581.94x = 6,406,107,995.99
  5. Step 5: Solve for x
    x = 6,406,107,995.99/92,581.94
  6. Step 6: Final answer
    x = 69,193.93

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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.