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Finding the Fourth Proportional to 92,833.08, 128,109.66 and 50,391.60

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Solution

The fourth proportional to 92,833.08, 128,109.66 and 50,391.60 is: 69,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,833.08 : 128,109.66 = 50,391.60 : x
  2. Step 2: Convert to fraction form
    92,833.08/128,109.66 = 50,391.60/x
  3. Step 3: Cross multiply
    92,833.08x = 128,109.66 × 50,391.60
  4. Step 4: Simplify right side
    92,833.08x = 6,455,650,742.86
  5. Step 5: Solve for x
    x = 6,455,650,742.86/92,833.08
  6. Step 6: Final answer
    x = 69,540.41

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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.