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Finding the Fourth Proportional to 91,967.59, 126,918.62 and 51,682.15

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Solution

The fourth proportional to 91,967.59, 126,918.62 and 51,682.15 is: 71,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,967.59 : 126,918.62 = 51,682.15 : x
  2. Step 2: Convert to fraction form
    91,967.59/126,918.62 = 51,682.15/x
  3. Step 3: Cross multiply
    91,967.59x = 126,918.62 × 51,682.15
  4. Step 4: Simplify right side
    91,967.59x = 6,559,427,156.63
  5. Step 5: Solve for x
    x = 6,559,427,156.63/91,967.59
  6. Step 6: Final answer
    x = 71,323.25

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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.