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Finding the Fourth Proportional to 92,842.47, 128,124.17 and 50,401

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Solution

The fourth proportional to 92,842.47, 128,124.17 and 50,401 is: 69,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,842.47 : 128,124.17 = 50,401 : x
  2. Step 2: Convert to fraction form
    92,842.47/128,124.17 = 50,401/x
  3. Step 3: Cross multiply
    92,842.47x = 128,124.17 × 50,401
  4. Step 4: Simplify right side
    92,842.47x = 6,457,586,292.17
  5. Step 5: Solve for x
    x = 6,457,586,292.17/92,842.47
  6. Step 6: Final answer
    x = 69,554.23

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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.