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Finding the Fourth Proportional to 93,687.98, 129,288.35 and 51,246

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Solution

The fourth proportional to 93,687.98, 129,288.35 and 51,246 is: 70,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,687.98 : 129,288.35 = 51,246 : x
  2. Step 2: Convert to fraction form
    93,687.98/129,288.35 = 51,246/x
  3. Step 3: Cross multiply
    93,687.98x = 129,288.35 × 51,246
  4. Step 4: Simplify right side
    93,687.98x = 6,625,510,912.22
  5. Step 5: Solve for x
    x = 6,625,510,912.22/93,687.98
  6. Step 6: Final answer
    x = 70,718.90

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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.