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Finding the Fourth Proportional to 483,222.62, 724,777.62 and 128,264.22

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Solution

The fourth proportional to 483,222.62, 724,777.62 and 128,264.22 is: 192,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,222.62 : 724,777.62 = 128,264.22 : x
  2. Step 2: Convert to fraction form
    483,222.62/724,777.62 = 128,264.22/x
  3. Step 3: Cross multiply
    483,222.62x = 724,777.62 × 128,264.22
  4. Step 4: Simplify right side
    483,222.62x = 92,963,036,102.76
  5. Step 5: Solve for x
    x = 92,963,036,102.76/483,222.62
  6. Step 6: Final answer
    x = 192,381.39

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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.