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Finding the Fourth Proportional to 92,936.52, 128,248.92 and 50,493.60

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Solution

The fourth proportional to 92,936.52, 128,248.92 and 50,493.60 is: 69,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,936.52 : 128,248.92 = 50,493.60 : x
  2. Step 2: Convert to fraction form
    92,936.52/128,248.92 = 50,493.60/x
  3. Step 3: Cross multiply
    92,936.52x = 128,248.92 × 50,493.60
  4. Step 4: Simplify right side
    92,936.52x = 6,475,749,666.91
  5. Step 5: Solve for x
    x = 6,475,749,666.91/92,936.52
  6. Step 6: Final answer
    x = 69,679.28

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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.