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Finding the Fourth Proportional to 623,618.54, 935,419.61 and 150,299.80

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Solution

The fourth proportional to 623,618.54, 935,419.61 and 150,299.80 is: 225,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,618.54 : 935,419.61 = 150,299.80 : x
  2. Step 2: Convert to fraction form
    623,618.54/935,419.61 = 150,299.80/x
  3. Step 3: Cross multiply
    623,618.54x = 935,419.61 × 150,299.80
  4. Step 4: Simplify right side
    623,618.54x = 140,593,374,870.48
  5. Step 5: Solve for x
    x = 140,593,374,870.48/623,618.54
  6. Step 6: Final answer
    x = 225,447.71

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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.