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Finding the Fourth Proportional to 68,666.76, 94,758.53 and 40,374.27

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Solution

The fourth proportional to 68,666.76, 94,758.53 and 40,374.27 is: 55,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,666.76 : 94,758.53 = 40,374.27 : x
  2. Step 2: Convert to fraction form
    68,666.76/94,758.53 = 40,374.27/x
  3. Step 3: Cross multiply
    68,666.76x = 94,758.53 × 40,374.27
  4. Step 4: Simplify right side
    68,666.76x = 3,825,806,273.15
  5. Step 5: Solve for x
    x = 3,825,806,273.15/68,666.76
  6. Step 6: Final answer
    x = 55,715.55

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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.