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Finding the Fourth Proportional to 482,608.11, 723,972.51 and 145,648.23

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Solution

The fourth proportional to 482,608.11, 723,972.51 and 145,648.23 is: 218,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,608.11 : 723,972.51 = 145,648.23 : x
  2. Step 2: Convert to fraction form
    482,608.11/723,972.51 = 145,648.23/x
  3. Step 3: Cross multiply
    482,608.11x = 723,972.51 × 145,648.23
  4. Step 4: Simplify right side
    482,608.11x = 105,445,314,650.16
  5. Step 5: Solve for x
    x = 105,445,314,650.16/482,608.11
  6. Step 6: Final answer
    x = 218,490.56

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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.