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Finding the Fourth Proportional to 92,960.73, 128,283.13 and 52,687.50

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Solution

The fourth proportional to 92,960.73, 128,283.13 and 52,687.50 is: 72,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,960.73 : 128,283.13 = 52,687.50 : x
  2. Step 2: Convert to fraction form
    92,960.73/128,283.13 = 52,687.50/x
  3. Step 3: Cross multiply
    92,960.73x = 128,283.13 × 52,687.50
  4. Step 4: Simplify right side
    92,960.73x = 6,758,917,411.88
  5. Step 5: Solve for x
    x = 6,758,917,411.88/92,960.73
  6. Step 6: Final answer
    x = 72,707.23

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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.