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Finding the Fourth Proportional to 266,943.54, 368,346.51 and 153,744.42

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Solution

The fourth proportional to 266,943.54, 368,346.51 and 153,744.42 is: 212,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,943.54 : 368,346.51 = 153,744.42 : x
  2. Step 2: Convert to fraction form
    266,943.54/368,346.51 = 153,744.42/x
  3. Step 3: Cross multiply
    266,943.54x = 368,346.51 × 153,744.42
  4. Step 4: Simplify right side
    266,943.54x = 56,631,220,538.97
  5. Step 5: Solve for x
    x = 56,631,220,538.97/266,943.54
  6. Step 6: Final answer
    x = 212,146.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.