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Finding the Fourth Proportional to 91,753.11, 126,567.99 and 57,748.95

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Solution

The fourth proportional to 91,753.11, 126,567.99 and 57,748.95 is: 79,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,753.11 : 126,567.99 = 57,748.95 : x
  2. Step 2: Convert to fraction form
    91,753.11/126,567.99 = 57,748.95/x
  3. Step 3: Cross multiply
    91,753.11x = 126,567.99 × 57,748.95
  4. Step 4: Simplify right side
    91,753.11x = 7,309,168,526.11
  5. Step 5: Solve for x
    x = 7,309,168,526.11/91,753.11
  6. Step 6: Final answer
    x = 79,661.26

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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.