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Finding the Fourth Proportional to 68,758.08, 94,784.76 and 53,633.76

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Solution

The fourth proportional to 68,758.08, 94,784.76 and 53,633.76 is: 73,935.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,758.08 : 94,784.76 = 53,633.76 : x
  2. Step 2: Convert to fraction form
    68,758.08/94,784.76 = 53,633.76/x
  3. Step 3: Cross multiply
    68,758.08x = 94,784.76 × 53,633.76
  4. Step 4: Simplify right side
    68,758.08x = 5,083,663,069.50
  5. Step 5: Solve for x
    x = 5,083,663,069.50/68,758.08
  6. Step 6: Final answer
    x = 73,935.50

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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.