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Finding the Fourth Proportional to 423,702.84, 635,554.05 and 108,159.64

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Solution

The fourth proportional to 423,702.84, 635,554.05 and 108,159.64 is: 162,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,702.84 : 635,554.05 = 108,159.64 : x
  2. Step 2: Convert to fraction form
    423,702.84/635,554.05 = 108,159.64/x
  3. Step 3: Cross multiply
    423,702.84x = 635,554.05 × 108,159.64
  4. Step 4: Simplify right side
    423,702.84x = 68,741,297,248.54
  5. Step 5: Solve for x
    x = 68,741,297,248.54/423,702.84
  6. Step 6: Final answer
    x = 162,239.41

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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.