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Finding the Fourth Proportional to 93,786.84, 129,425.56 and 51,345.07

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Solution

The fourth proportional to 93,786.84, 129,425.56 and 51,345.07 is: 70,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,786.84 : 129,425.56 = 51,345.07 : x
  2. Step 2: Convert to fraction form
    93,786.84/129,425.56 = 51,345.07/x
  3. Step 3: Cross multiply
    93,786.84x = 129,425.56 × 51,345.07
  4. Step 4: Simplify right side
    93,786.84x = 6,645,364,437.99
  5. Step 5: Solve for x
    x = 6,645,364,437.99/93,786.84
  6. Step 6: Final answer
    x = 70,856.04

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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.