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Finding the Fourth Proportional to 92,833.31, 128,109.86 and 50,391.84

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Solution

The fourth proportional to 92,833.31, 128,109.86 and 50,391.84 is: 69,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,833.31 : 128,109.86 = 50,391.84 : x
  2. Step 2: Convert to fraction form
    92,833.31/128,109.86 = 50,391.84/x
  3. Step 3: Cross multiply
    92,833.31x = 128,109.86 × 50,391.84
  4. Step 4: Simplify right side
    92,833.31x = 6,455,691,315.58
  5. Step 5: Solve for x
    x = 6,455,691,315.58/92,833.31
  6. Step 6: Final answer
    x = 69,540.68

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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.