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Finding the Fourth Proportional to 92,642.72, 127,847.12 and 50,201.28

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Solution

The fourth proportional to 92,642.72, 127,847.12 and 50,201.28 is: 69,277.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,642.72 : 127,847.12 = 50,201.28 : x
  2. Step 2: Convert to fraction form
    92,642.72/127,847.12 = 50,201.28/x
  3. Step 3: Cross multiply
    92,642.72x = 127,847.12 × 50,201.28
  4. Step 4: Simplify right side
    92,642.72x = 6,418,089,068.31
  5. Step 5: Solve for x
    x = 6,418,089,068.31/92,642.72
  6. Step 6: Final answer
    x = 69,277.86

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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.