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Finding the Fourth Proportional to 225,583.08, 311,304.72 and 123,607.71

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Solution

The fourth proportional to 225,583.08, 311,304.72 and 123,607.71 is: 170,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,583.08 : 311,304.72 = 123,607.71 : x
  2. Step 2: Convert to fraction form
    225,583.08/311,304.72 = 123,607.71/x
  3. Step 3: Cross multiply
    225,583.08x = 311,304.72 × 123,607.71
  4. Step 4: Simplify right side
    225,583.08x = 38,479,663,319.63
  5. Step 5: Solve for x
    x = 38,479,663,319.63/225,583.08
  6. Step 6: Final answer
    x = 170,578.68

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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.