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Finding the Fourth Proportional to 432,612.37, 648,920.04 and 133,090.93

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Solution

The fourth proportional to 432,612.37, 648,920.04 and 133,090.93 is: 199,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,612.37 : 648,920.04 = 133,090.93 : x
  2. Step 2: Convert to fraction form
    432,612.37/648,920.04 = 133,090.93/x
  3. Step 3: Cross multiply
    432,612.37x = 648,920.04 × 133,090.93
  4. Step 4: Simplify right side
    432,612.37x = 86,365,371,619.24
  5. Step 5: Solve for x
    x = 86,365,371,619.24/432,612.37
  6. Step 6: Final answer
    x = 199,636.85

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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.