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Finding the Fourth Proportional to 423,674.32, 635,599.02 and 124,164.70

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Solution

The fourth proportional to 423,674.32, 635,599.02 and 124,164.70 is: 186,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,674.32 : 635,599.02 = 124,164.70 : x
  2. Step 2: Convert to fraction form
    423,674.32/635,599.02 = 124,164.70/x
  3. Step 3: Cross multiply
    423,674.32x = 635,599.02 × 124,164.70
  4. Step 4: Simplify right side
    423,674.32x = 78,918,961,638.59
  5. Step 5: Solve for x
    x = 78,918,961,638.59/423,674.32
  6. Step 6: Final answer
    x = 186,272.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.