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Finding the Fourth Proportional to 69,203.28, 94,877.63 and 67,942.11

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Solution

The fourth proportional to 69,203.28, 94,877.63 and 67,942.11 is: 93,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,203.28 : 94,877.63 = 67,942.11 : x
  2. Step 2: Convert to fraction form
    69,203.28/94,877.63 = 67,942.11/x
  3. Step 3: Cross multiply
    69,203.28x = 94,877.63 × 67,942.11
  4. Step 4: Simplify right side
    69,203.28x = 6,446,186,374.00
  5. Step 5: Solve for x
    x = 6,446,186,374.00/69,203.28
  6. Step 6: Final answer
    x = 93,148.57

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.