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Finding the Fourth Proportional to 361,628.97, 542,479.91 and 95,407.89

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Solution

The fourth proportional to 361,628.97, 542,479.91 and 95,407.89 is: 143,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,628.97 : 542,479.91 = 95,407.89 : x
  2. Step 2: Convert to fraction form
    361,628.97/542,479.91 = 95,407.89/x
  3. Step 3: Cross multiply
    361,628.97x = 542,479.91 × 95,407.89
  4. Step 4: Simplify right side
    361,628.97x = 51,756,863,580.49
  5. Step 5: Solve for x
    x = 51,756,863,580.49/361,628.97
  6. Step 6: Final answer
    x = 143,121.45

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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.