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Finding the Fourth Proportional to 112,846.65, 155,723.70 and 67,497.84

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Solution

The fourth proportional to 112,846.65, 155,723.70 and 67,497.84 is: 93,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,846.65 : 155,723.70 = 67,497.84 : x
  2. Step 2: Convert to fraction form
    112,846.65/155,723.70 = 67,497.84/x
  3. Step 3: Cross multiply
    112,846.65x = 155,723.70 × 67,497.84
  4. Step 4: Simplify right side
    112,846.65x = 10,511,013,386.81
  5. Step 5: Solve for x
    x = 10,511,013,386.81/112,846.65
  6. Step 6: Final answer
    x = 93,144.22

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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.