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Finding the Fourth Proportional to 272,703.31, 408,918.08 and 158,887.96

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Solution

The fourth proportional to 272,703.31, 408,918.08 and 158,887.96 is: 238,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,703.31 : 408,918.08 = 158,887.96 : x
  2. Step 2: Convert to fraction form
    272,703.31/408,918.08 = 158,887.96/x
  3. Step 3: Cross multiply
    272,703.31x = 408,918.08 × 158,887.96
  4. Step 4: Simplify right side
    272,703.31x = 64,972,159,538.32
  5. Step 5: Solve for x
    x = 64,972,159,538.32/272,703.31
  6. Step 6: Final answer
    x = 238,252.19

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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.