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Finding the Fourth Proportional to 177,448.84, 266,072.82 and 72,143.98

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Solution

The fourth proportional to 177,448.84, 266,072.82 and 72,143.98 is: 108,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,448.84 : 266,072.82 = 72,143.98 : x
  2. Step 2: Convert to fraction form
    177,448.84/266,072.82 = 72,143.98/x
  3. Step 3: Cross multiply
    177,448.84x = 266,072.82 × 72,143.98
  4. Step 4: Simplify right side
    177,448.84x = 19,195,552,204.62
  5. Step 5: Solve for x
    x = 19,195,552,204.62/177,448.84
  6. Step 6: Final answer
    x = 108,175.13

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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.