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Finding the Fourth Proportional to 351,374.40, 527,407.20 and 174,081.60

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Solution

The fourth proportional to 351,374.40, 527,407.20 and 174,081.60 is: 261,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,374.40 : 527,407.20 = 174,081.60 : x
  2. Step 2: Convert to fraction form
    351,374.40/527,407.20 = 174,081.60/x
  3. Step 3: Cross multiply
    351,374.40x = 527,407.20 × 174,081.60
  4. Step 4: Simplify right side
    351,374.40x = 91,811,889,227.52
  5. Step 5: Solve for x
    x = 91,811,889,227.52/351,374.40
  6. Step 6: Final answer
    x = 261,293.62

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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.