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Finding the Fourth Proportional to 423,730.27, 635,596.53 and 103,883.59

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Solution

The fourth proportional to 423,730.27, 635,596.53 and 103,883.59 is: 155,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,730.27 : 635,596.53 = 103,883.59 : x
  2. Step 2: Convert to fraction form
    423,730.27/635,596.53 = 103,883.59/x
  3. Step 3: Cross multiply
    423,730.27x = 635,596.53 × 103,883.59
  4. Step 4: Simplify right side
    423,730.27x = 66,028,049,327.94
  5. Step 5: Solve for x
    x = 66,028,049,327.94/423,730.27
  6. Step 6: Final answer
    x = 155,825.66

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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.