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Finding the Fourth Proportional to 432,881.67, 649,393.52 and 133,355.55

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Solution

The fourth proportional to 432,881.67, 649,393.52 and 133,355.55 is: 200,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,881.67 : 649,393.52 = 133,355.55 : x
  2. Step 2: Convert to fraction form
    432,881.67/649,393.52 = 133,355.55/x
  3. Step 3: Cross multiply
    432,881.67x = 649,393.52 × 133,355.55
  4. Step 4: Simplify right side
    432,881.67x = 86,600,230,026.04
  5. Step 5: Solve for x
    x = 86,600,230,026.04/432,881.67
  6. Step 6: Final answer
    x = 200,055.20

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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.