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Finding the Fourth Proportional to 248,355.89, 342,321.21 and 175,664.87

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Solution

The fourth proportional to 248,355.89, 342,321.21 and 175,664.87 is: 242,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,355.89 : 342,321.21 = 175,664.87 : x
  2. Step 2: Convert to fraction form
    248,355.89/342,321.21 = 175,664.87/x
  3. Step 3: Cross multiply
    248,355.89x = 342,321.21 × 175,664.87
  4. Step 4: Simplify right side
    248,355.89x = 60,133,809,141.29
  5. Step 5: Solve for x
    x = 60,133,809,141.29/248,355.89
  6. Step 6: Final answer
    x = 242,127.58

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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.