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Finding the Fourth Proportional to 272,238.93, 375,634.40 and 159,039.81

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Solution

The fourth proportional to 272,238.93, 375,634.40 and 159,039.81 is: 219,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,238.93 : 375,634.40 = 159,039.81 : x
  2. Step 2: Convert to fraction form
    272,238.93/375,634.40 = 159,039.81/x
  3. Step 3: Cross multiply
    272,238.93x = 375,634.40 × 159,039.81
  4. Step 4: Simplify right side
    272,238.93x = 59,740,822,810.27
  5. Step 5: Solve for x
    x = 59,740,822,810.27/272,238.93
  6. Step 6: Final answer
    x = 219,442.62

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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.