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Finding the Fourth Proportional to 68,146.56, 94,041.52 and 37,931.40

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Solution

The fourth proportional to 68,146.56, 94,041.52 and 37,931.40 is: 52,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.56 : 94,041.52 = 37,931.40 : x
  2. Step 2: Convert to fraction form
    68,146.56/94,041.52 = 37,931.40/x
  3. Step 3: Cross multiply
    68,146.56x = 94,041.52 × 37,931.40
  4. Step 4: Simplify right side
    68,146.56x = 3,567,126,511.73
  5. Step 5: Solve for x
    x = 3,567,126,511.73/68,146.56
  6. Step 6: Final answer
    x = 52,344.92

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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.