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Finding the Fourth Proportional to 361,637.08, 542,448.42 and 112,318.36

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Solution

The fourth proportional to 361,637.08, 542,448.42 and 112,318.36 is: 168,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,637.08 : 542,448.42 = 112,318.36 : x
  2. Step 2: Convert to fraction form
    361,637.08/542,448.42 = 112,318.36/x
  3. Step 3: Cross multiply
    361,637.08x = 542,448.42 × 112,318.36
  4. Step 4: Simplify right side
    361,637.08x = 60,926,916,918.99
  5. Step 5: Solve for x
    x = 60,926,916,918.99/361,637.08
  6. Step 6: Final answer
    x = 168,475.30

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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.