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Finding the Fourth Proportional to 344,907.54, 517,489.56 and 155,310.84

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Solution

The fourth proportional to 344,907.54, 517,489.56 and 155,310.84 is: 233,024.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,907.54 : 517,489.56 = 155,310.84 : x
  2. Step 2: Convert to fraction form
    344,907.54/517,489.56 = 155,310.84/x
  3. Step 3: Cross multiply
    344,907.54x = 517,489.56 × 155,310.84
  4. Step 4: Simplify right side
    344,907.54x = 80,371,738,254.83
  5. Step 5: Solve for x
    x = 80,371,738,254.83/344,907.54
  6. Step 6: Final answer
    x = 233,024.01

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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.