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Finding the Fourth Proportional to 272,441.39, 375,963.26 and 157,724.89

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Solution

The fourth proportional to 272,441.39, 375,963.26 and 157,724.89 is: 217,656.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,441.39 : 375,963.26 = 157,724.89 : x
  2. Step 2: Convert to fraction form
    272,441.39/375,963.26 = 157,724.89/x
  3. Step 3: Cross multiply
    272,441.39x = 375,963.26 × 157,724.89
  4. Step 4: Simplify right side
    272,441.39x = 59,298,763,827.54
  5. Step 5: Solve for x
    x = 59,298,763,827.54/272,441.39
  6. Step 6: Final answer
    x = 217,656.96

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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.