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Finding the Fourth Proportional to 423,969.93, 635,958.54 and 124,455.42

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Solution

The fourth proportional to 423,969.93, 635,958.54 and 124,455.42 is: 186,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,969.93 : 635,958.54 = 124,455.42 : x
  2. Step 2: Convert to fraction form
    423,969.93/635,958.54 = 124,455.42/x
  3. Step 3: Cross multiply
    423,969.93x = 635,958.54 × 124,455.42
  4. Step 4: Simplify right side
    423,969.93x = 79,148,487,198.29
  5. Step 5: Solve for x
    x = 79,148,487,198.29/423,969.93
  6. Step 6: Final answer
    x = 186,684.20

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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.