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Finding the Fourth Proportional to 613,136.25, 919,737.18 and 192,444.93

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Solution

The fourth proportional to 613,136.25, 919,737.18 and 192,444.93 is: 288,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,136.25 : 919,737.18 = 192,444.93 : x
  2. Step 2: Convert to fraction form
    613,136.25/919,737.18 = 192,444.93/x
  3. Step 3: Cross multiply
    613,136.25x = 919,737.18 × 192,444.93
  4. Step 4: Simplify right side
    613,136.25x = 176,998,757,223.50
  5. Step 5: Solve for x
    x = 176,998,757,223.50/613,136.25
  6. Step 6: Final answer
    x = 288,677.69

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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.