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Finding the Fourth Proportional to 554,493.72, 831,792.96 and 155,134.56

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Solution

The fourth proportional to 554,493.72, 831,792.96 and 155,134.56 is: 232,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,493.72 : 831,792.96 = 155,134.56 : x
  2. Step 2: Convert to fraction form
    554,493.72/831,792.96 = 155,134.56/x
  3. Step 3: Cross multiply
    554,493.72x = 831,792.96 × 155,134.56
  4. Step 4: Simplify right side
    554,493.72x = 129,039,834,860.70
  5. Step 5: Solve for x
    x = 129,039,834,860.70/554,493.72
  6. Step 6: Final answer
    x = 232,716.49

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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.