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Finding the Fourth Proportional to 432,886.67, 649,401.02 and 133,360.55

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Solution

The fourth proportional to 432,886.67, 649,401.02 and 133,360.55 is: 200,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,886.67 : 649,401.02 = 133,360.55 : x
  2. Step 2: Convert to fraction form
    432,886.67/649,401.02 = 133,360.55/x
  3. Step 3: Cross multiply
    432,886.67x = 649,401.02 × 133,360.55
  4. Step 4: Simplify right side
    432,886.67x = 86,604,477,197.76
  5. Step 5: Solve for x
    x = 86,604,477,197.76/432,886.67
  6. Step 6: Final answer
    x = 200,062.70

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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.