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Finding the Fourth Proportional to 455,496.39, 683,174.34 and 155,908.17

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Solution

The fourth proportional to 455,496.39, 683,174.34 and 155,908.17 is: 233,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,496.39 : 683,174.34 = 155,908.17 : x
  2. Step 2: Convert to fraction form
    455,496.39/683,174.34 = 155,908.17/x
  3. Step 3: Cross multiply
    455,496.39x = 683,174.34 × 155,908.17
  4. Step 4: Simplify right side
    455,496.39x = 106,512,461,140.36
  5. Step 5: Solve for x
    x = 106,512,461,140.36/455,496.39
  6. Step 6: Final answer
    x = 233,838.21

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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.