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Finding the Fourth Proportional to 423,567.88, 635,185.77 and 153,631.73

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Solution

The fourth proportional to 423,567.88, 635,185.77 and 153,631.73 is: 230,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,567.88 : 635,185.77 = 153,631.73 : x
  2. Step 2: Convert to fraction form
    423,567.88/635,185.77 = 153,631.73/x
  3. Step 3: Cross multiply
    423,567.88x = 635,185.77 × 153,631.73
  4. Step 4: Simplify right side
    423,567.88x = 97,584,689,728.33
  5. Step 5: Solve for x
    x = 97,584,689,728.33/423,567.88
  6. Step 6: Final answer
    x = 230,387.37

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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.