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Finding the Fourth Proportional to 92,952.72, 128,275.92 and 50,511.96

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Solution

The fourth proportional to 92,952.72, 128,275.92 and 50,511.96 is: 69,707.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,952.72 : 128,275.92 = 50,511.96 : x
  2. Step 2: Convert to fraction form
    92,952.72/128,275.92 = 50,511.96/x
  3. Step 3: Cross multiply
    92,952.72x = 128,275.92 × 50,511.96
  4. Step 4: Simplify right side
    92,952.72x = 6,479,468,140.00
  5. Step 5: Solve for x
    x = 6,479,468,140.00/92,952.72
  6. Step 6: Final answer
    x = 69,707.14

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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.