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Finding the Fourth Proportional to 432,367.39, 648,548.65 and 148,060.43

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Solution

The fourth proportional to 432,367.39, 648,548.65 and 148,060.43 is: 222,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,367.39 : 648,548.65 = 148,060.43 : x
  2. Step 2: Convert to fraction form
    432,367.39/648,548.65 = 148,060.43/x
  3. Step 3: Cross multiply
    432,367.39x = 648,548.65 × 148,060.43
  4. Step 4: Simplify right side
    432,367.39x = 96,024,391,994.92
  5. Step 5: Solve for x
    x = 96,024,391,994.92/432,367.39
  6. Step 6: Final answer
    x = 222,089.81

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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.