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Finding the Fourth Proportional to 91,311.44, 126,010.44 and 51,026.90

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Solution

The fourth proportional to 91,311.44, 126,010.44 and 51,026.90 is: 70,417.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,311.44 : 126,010.44 = 51,026.90 : x
  2. Step 2: Convert to fraction form
    91,311.44/126,010.44 = 51,026.90/x
  3. Step 3: Cross multiply
    91,311.44x = 126,010.44 × 51,026.90
  4. Step 4: Simplify right side
    91,311.44x = 6,429,921,490.78
  5. Step 5: Solve for x
    x = 6,429,921,490.78/91,311.44
  6. Step 6: Final answer
    x = 70,417.48

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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.