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Finding the Fourth Proportional to 162,694.71, 224,516.41 and 91,074.65

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Solution

The fourth proportional to 162,694.71, 224,516.41 and 91,074.65 is: 125,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,694.71 : 224,516.41 = 91,074.65 : x
  2. Step 2: Convert to fraction form
    162,694.71/224,516.41 = 91,074.65/x
  3. Step 3: Cross multiply
    162,694.71x = 224,516.41 × 91,074.65
  4. Step 4: Simplify right side
    162,694.71x = 20,447,752,109.74
  5. Step 5: Solve for x
    x = 20,447,752,109.74/162,694.71
  6. Step 6: Final answer
    x = 125,681.73

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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.