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Finding the Fourth Proportional to 404,374.45, 606,426.12 and 134,440.33

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Solution

The fourth proportional to 404,374.45, 606,426.12 and 134,440.33 is: 201,615.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,374.45 : 606,426.12 = 134,440.33 : x
  2. Step 2: Convert to fraction form
    404,374.45/606,426.12 = 134,440.33/x
  3. Step 3: Cross multiply
    404,374.45x = 606,426.12 × 134,440.33
  4. Step 4: Simplify right side
    404,374.45x = 81,528,127,693.42
  5. Step 5: Solve for x
    x = 81,528,127,693.42/404,374.45
  6. Step 6: Final answer
    x = 201,615.43

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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.