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Finding the Fourth Proportional to 432,562.70, 648,892.65 and 133,040.90

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Solution

The fourth proportional to 432,562.70, 648,892.65 and 133,040.90 is: 199,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,562.70 : 648,892.65 = 133,040.90 : x
  2. Step 2: Convert to fraction form
    432,562.70/648,892.65 = 133,040.90/x
  3. Step 3: Cross multiply
    432,562.70x = 648,892.65 × 133,040.90
  4. Step 4: Simplify right side
    432,562.70x = 86,329,262,159.39
  5. Step 5: Solve for x
    x = 86,329,262,159.39/432,562.70
  6. Step 6: Final answer
    x = 199,576.30

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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.