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Finding the Fourth Proportional to 432,497.06, 648,807.60 and 133,002.80

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Solution

The fourth proportional to 432,497.06, 648,807.60 and 133,002.80 is: 199,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,497.06 : 648,807.60 = 133,002.80 : x
  2. Step 2: Convert to fraction form
    432,497.06/648,807.60 = 133,002.80/x
  3. Step 3: Cross multiply
    432,497.06x = 648,807.60 × 133,002.80
  4. Step 4: Simplify right side
    432,497.06x = 86,293,227,461.28
  5. Step 5: Solve for x
    x = 86,293,227,461.28/432,497.06
  6. Step 6: Final answer
    x = 199,523.27

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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.